Recently added hot springs

  • 湯宿温泉 金田屋（群馬県 · 硫酸塩泉）
  • 草津館（群馬県 · 酸性泉）
  • 小川温泉元湯 ホテルおがわ（富山県 · 塩化物泉）
  • 竜泉寺の湯八王子みなみの店（東京都 · 単純温泉）
  • 十勝川モール温泉　静寂房（北海道 · 単純温泉）
  • 白旗源泉（群馬県 · 酸性泉）

Browse by spring type

  • 単純温泉
  • 塩化物泉
  • 炭酸水素塩泉
  • 硫酸塩泉
  • 二酸化炭素泉
  • 含鉄泉
  • 硫黄泉
  • 酸性泉
  • 放射能泉
  • 含よう素泉

Browse by area

  • 群馬県
  • 栃木県
  • 長野県

Guides & Columns

  • View all columns
  • Chloride Springs: Benefits, Indications & Recommended Onsen
  • Simple Springs (Tanjun Onsen): Gentle Waters for Everyone
  • Bicarbonate Springs: "Beauty Waters" for Smooth, Glowing Skin
  • Sulphate Springs: "The Healing Waters" for Wounds, Skin & Digestion
  • Carbon Dioxide Springs: "The Bubble Waters" for Gentle Circulation
  • Ferruginous Springs: Iron-Rich Waters for Anemia & Unique Rust-Red Baths
  • Acidic Springs: Powerfully Antibacterial Waters for Skin Conditions
  • Iodine-Containing Springs: Non-Volcanic Rarity with Cholesterol Benefits
  • Sulphur Springs: Milky White Waters with Powerful Skin Benefits
  • Radioactive Springs: Traditional Radon Waters for Gout & Joint Conditions
  • Metasilicic Acid: The "Beauty Spring" Standard Mineral & Top 5 Onsen
  • Sodium ion: Main Effects & Top 5
  • Calcium ion: Main Effects & Top 5
  • Magnesium ion: Main Effects & Top 5
  • Iron ion: Main Effects & Top 5
  • Sulfide ion: Main Effects & Top 5
  • Bicarbonate ion: Main Effects & Top 5
  • Sulfate ion: Main Effects & Top 5
  • Chloride ion: Main Effects & Top 5
  • Fluoride ion: Main Effects & Top 5
  • Iodide ion: Main Effects & Top 5
  • Bromide ion: Main Effects & Top 5
  • Radon: Main Effects & Top 5
  • Free carbon dioxide: Main Effects & Top 5
  • Metaboric acid: Main Effects & Top 5
  • Hot Springs for Cold Sensitivity | 4 Spring Types Explained
  • Peripheral Circulation Disorders & Onsen | All 10 Spring Types Indicated
  • Hot Springs for Fatigue Recovery | All 10 Spring Types
  • Hot Springs for Autonomic Disorder & Stress | Ministry-Approved Guide
  • Hot Springs for Insomnia | General Indication Across All 10 Spring Types
  • Hot Springs for Chronic Joint Pain & Neuralgia | All 10 Spring Types Including Radon
  • Rheumatoid Arthritis & Onsen | Radon Springs and the General Bathing Indication
  • Depression & Low Mood | Onsen Bathing as Complementary Therapy
  • Muscle Paralysis & Motor Stiffness | Onsen as Rehabilitation Therapy
  • Hot Springs for Beautiful Skin | Bicarbonate, Chloride & Sulfate Springs Explained
  • Hot Springs for Atopic Dermatitis | Sulfur & Acidic Springs: Benefits and Precautions
  • Psoriasis & Onsen | Acidic and Sulfur Springs Officially Indicated
  • Chronic Eczema & Onsen | Sulfur Springs for Antibacterial and Anti-inflammatory Action
  • Skin Infections (Pyoderma) & Onsen | Strong Antimicrobial Action of Acidic and Sulfur Springs
  • Hot Springs for Wound Healing | 4 Spring Types with Antiseptic & Regenerative Effects
  • Hot Spring Therapy for Mild Hypertension | All 10 Types & the Special Role of CO₂ Springs
  • Impaired Glucose Tolerance (Diabetes) & Onsen | Bathing and Drinking Indications
  • High Cholesterol & Onsen | Sulfate, Iodine & Sulfur Spring Drinking Indications
  • Poor Gastrointestinal Function & Onsen | Carbon Dioxide Springs Explained
  • Drinking Spring Water for Constipation | Chloride, Sulfate & Bicarbonate Springs
  • Gastric & Duodenal Ulcers | Bicarbonate Spring Drinking Indication Explained
  • Gastroesophageal Reflux (GERD) & Onsen | Bicarbonate Springs for Acid Neutralisation
  • Atrophic Gastritis & Onsen | Chloride Springs to Stimulate Gastric Acid
  • Biliary Dysfunction & Onsen | Sulfate Springs to Stimulate the Gallbladder
  • Iron Springs for Iron-Deficiency Anemia | Drinking & Bathing Benefits Explained
  • Hot Springs for Gout | Radon Springs (Bathing) & Bicarbonate Springs (Drinking)
  • Ankylosing Spondylitis & Onsen | Radioactive (Radon) Springs Specifically Indicated
  • Mild Asthma & Emphysema | Onsen Bathing and Respiratory Function
  • Haemorrhoid Pain & Onsen | Thermal Improvement of Anal Circulation
  • Post-Illness Recovery & Onsen | Thermal Therapy to Restore Vitality
  • Before You Bathe: Preparation & Safety Checklist | Ministry of Environment Guidelines
  • Safety During Hot Spring Bathing | Heat Stroke, Heat Shock & Soaking Time
  • Drinking Hot Spring Water (Insatsu) | What It Is, Benefits & Safety Rules
  • Hot Spring Contraindications | Conditions & Situations to Avoid Bathing
  • What Is an Onsen? | Japan's Hot Spring Definition & 3 Legal Conditions Explained
  • What Is Spring Type (Senshu)? | Japan's 10 Hot Spring Classifications Explained
  • What Is a Hot Spring Analysis Certificate? | Legal Requirements & How to Read It
  • What Are General Indications? | Health Benefits Common to All Hot Spring Types
  • What Are Contraindications for Onsen? | Conditions & Diseases That Prohibit Bathing
  • What Is Insatsu (Drinking Onsen Water)? | Culture, Benefits & Safety
  • What Is a 'Beauty Spring' (Bijin-no-yu)? | Why Metasilicic Acid Makes Skin Glow
  • Onsen vs. Sentō: What's the Difference? | Japan's Hot Spring Law Explained
  • Japanese Onsen Etiquette Guide | Washing, Towels & Bathing Rules
  • Onsen-Hopping Order | How to Visit Multiple Hot Springs in One Day
  • Tattoos at Japanese Onsen | Policies, Alternatives & Tips for Visitors
  • Mixed-Gender Bathing (Konyoku) in Japan | History, Rules & What to Expect
  • Private Family Baths (Kashikiri-buro) | How to Book & What to Expect
  • Onsen with Kids | Age Rules, Safety Tips & Choosing the Right Facility
  • Lake Akan Onsen: A Mystical Lakeside Resort of Marimo and Ainu Culture
  • Akiu Onsen | A Historic Retreat Loved by Date Masamune
  • Amagase Onsen | A Historic Hot Spring Town Along a Picturesque River
  • Arima Onsen: One of Japan's Three Ancient Springs with Golden & Silver Waters
  • Asahidake Onsen: A Heavenly Hot Spring in Daisetsuzan National Park
  • Asama Onsen | The Historic Hot Spring Retreat of Matsumoto Castle
  • Asamushi Onsen | A Seaside Hot Spring Resort Overlooking Mutsu Bay
  • Aso Uchinomaki Onsen: A Famed Hot Spring Village in the Aso Caldera
  • Atami Onsen: A Historic Seaside Hot Spring Resort Favored by Shoguns
  • Awara Onsen | A Refined Hot Spring Town, Kansai's 'Inner Parlor'
  • Beppu Onsen | Japan's Top Hot Spring by Volume and Variety
  • Bessho Onsen: A historic 'Beauty Bath' in the 'Kamakura of Shinshu'
  • Dake Onsen | Milky White Hot Springs at the Foot of Mt. Iwaki
  • Dake Onsen | Milky White Acidic Springs at the Foot of Mt. Adatara
  • Dogo Onsen | Japan's Oldest Hot Spring, Loved by Literary Figures
  • Ebino Kogen Onsen: Sulfur Springs in the Heart of the Kirishima Mountains
  • Echigo-Yuzawa Onsen: Skiing and Hot Springs in Japan's 'Snow Country'
  • Fukuji Onsen: A Nostalgic Retreat in the Okuhida Mountains
  • Fukuroda Onsen: A Serene Hot Spring by Japan's Famed Fukuroda Falls
  • Furuyu Onsen | A tranquil Saga retreat for healing in lukewarm waters
  • Futsukaichi Onsen: An Ancient Hot Spring Praised in Man'yoshu Poetry
  • Gero Onsen | One of Japan's Three Famed Springs, the "Spring of Beauty"
  • Geto Onsen | The King of Touji, a secluded hot spring in a heavy-snow region
  • Ginzan Onsen | A Picturesque Hot Spring Town with Taisho-Era Charm
  • Hachimantai Onsen-go: A Hot Spring Village with Diverse Waters in a National Park
  • Hakone Onsen: A Scenic Hot Spring Resort with Diverse Waters near Tokyo
  • Hanamaki Minami Onsenkyo: A Valley of Hot Springs Loved by Poets
  • Harazuru Onsen | Fukuoka's Hot Spring for "Double Beauty" Waters
  • Higashiyama Onsen | A Historic Hot Spring Retreat in Aizu's Backyard
  • Hijiori Onsen | A Secluded Hot Spring with 1200 Years of Toji Culture
  • Hinagu Onsen: A tranquil hot spring retreat in Kumamoto with 600 years of history
  • Hirayu Onsen: Gateway to Okuhida, Nestled in the Northern Alps
  • Hoshi Onsen: A Historic Inn with Springs Bubbling from Below
  • Ibusuki Onsen | Detox in a World-Famous Natural Sand Steam Bath
  • Iizaka Onsen | A Historic Hot Spring Town Loved by Basho
  • Ikaho Onsen | A Historic Hot Spring Town with Iconic Stone Steps
  • Isawa Onsen | A Hot Spring Oasis in Japan's Wine Country
  • Itamuro Onsen | A National Health Resort for Healing in Tepid Waters
  • Ito Onsen: A Historic Hot Spring Town with Abundant Waters
  • Jozankei Onsen: Sapporo's Hidden Retreat of Scenic Gorges and Healing Waters
  • Kaike Onsen: A Seaside Hot Spring Resort with Salt-Rich Waters
  • Kakeyu Onsen | A National Health Resort for Healing Mind and Body
  • Kamisuwa Onsen: A Historic Hot Spring Resort on the Shores of Lake Suwa
  • Kannawa Onsen | A Beppu Hot Spring Village of Rising Steam and Healing Waters
  • Kawaji Onsen: A Serene Valley Hot Spring Known for Healing
  • Kawayu Onsen: A Potent Acidic Spring in Akan-Mashu National Park
  • Kawayu Onsen | Dig Your Own Hot Spring by the River
  • Kinosaki Onsen | A Tale of Seven Public Hot Springs, Explored in Yukata
  • Kinugawa Onsen: A Scenic Hot Spring Resort in a Grand Valley
  • Kirishima Onsen-go | A diverse hot spring village steeped in mythology
  • Kurokawa Onsen: A Charming Village for Onsen-Hopping
  • Kusatsu Onsen | One of Japan's Top 3 Hot Springs
  • Kyomachi Onsen: A Tranquil Hot Spring Retreat in Rural Miyazaki
  • Manza Onsen | Japan's Premier High-Altitude Sulfur Spring
  • Matsunoyama Onsen: A Top Medicinal Spring with Ancient Seawater
  • Minakami Onsen-go: A Nature Lover's Hot Spring Retreat at Mt. Tanigawa's Base
  • Misasa Onsen | A World-Class Radon Spring for Healing Inside and Out
  • Myoken Onsen: A Historic Hot Spring Retreat Along the Amorigawa River
  • Myoko Onsen-go | A Highland Resort with Seven Springs and Four Seasons
  • Nagato Yumoto Onsen: A Stylish, Reborn Riverside Hot Spring Town
  • Nagayu Onsen: Japan's Premier Carbonated Spring, the 'Soda Pop Spa'
  • Naruko Onsen-go: A 'Department Store' of Hot Springs with 8 Spring Qualities
  • Nasu Onsen-go: A Highland Resort with Imperial Roots
  • Niseko Onsen-go | Powder Snow Meets a Variety of Hot Springs
  • Noboribetsu Onsen | The 'Department Store of Hot Springs'
  • Nozawa Onsen: A Historic Hot Spring Village with Skiing and Tradition
  • Nyuto Onsen-go | A Secluded Hot Spring Village of Seven Unique Inns
  • Obama Onsen: Japan's Hottest Spring with Stunning Sunset Views
  • Oga Onsen-go: Hot Springs in the Land of the Namahage
  • Ogoto Onsen: Lakeside Views of Biwa and Skin-Beautifying Waters
  • Oigami Onsen: A Legendary Hot Spring in a Scenic Gorge
  • Okukinu Onsen-go | Kanto's Last Hidden Gem, A Sanctuary of Natural Springs
  • Okutsu Onsen: A "Beauty Bath" Hot Spring Famous for its Foot-Washing Tradition
  • Osawa Onsen | A Riverside Hot Spring Retreat Loved by Kenji Miyazawa
  • Oshuku Onsen: A Healing Hot Spring with 450 Years of History, Morioka's Retreat
  • Rendaiji Onsen | A tranquil, historic hot spring once visited by Yoshida Shoin
  • Ryujin Onsen | One of Japan's Three Great "Beautifying" Hot Springs
  • Sakakibara Onsen | The "Beauty Bath" Praised in The Pillow Book
  • Sakunami Onsen: Sendai's Serene Retreat, the "Waters of Beauty"
  • Senami Onsen | Breathtaking Sunsets Over the Sea of Japan
  • Shibu Onsen: A Historic Town of Cobblestone Streets and Nine Bath巡り
  • Lake Shikaribetsu Onsen: A secluded hot spring by a celestial lake in Daisetsuzan National Park
  • Shima Onsen | A historic spa famed for healing '40,000 ailments'
  • Shimobe Onsen | A Famed Hot Spring Known as Takeda Shingen's Hideaway
  • Shin-Hirayu Onsen: A Tranquil Hot Spring Retreat in the Okuhida Mountains
  • Shiobara Onsen-go | A Valley of Seven-Colored Waters with 1,200 Years of History
  • Shionoe Onsen: Kagawa's tranquil retreat with ties to Kobo Daishi
  • Shirahama Onsen | One of Japan's Three Ancient Hot Springs by a White Sandy Beach
  • Shirahone Onsen | A Secluded Hot Spring with Milky-White Waters
  • Shuzenji Onsen: The 'Little Kyoto' of Izu, a historic spa town
  • Sounkyo Onsen: A Gorge of Grandeur in Daisetsuzan National Park
  • Sukayu Onsen | Japan's First National Hot Spring Health Resort in the Heart of Hakkoda
  • Takayu Onsen: A Famed Hot Spring with Milky-White, Free-Flowing Waters
  • Takeo Onsen: A 1,300-Year-Old "Beauty Bath" with an Iconic Tower Gate
  • Tamagawa Onsen | Japan's Most Acidic Hot Spring for Healing
  • Tamatsukuri Onsen | A Fabled Hot Spring, Japan's Ancient Spa for Beautiful Skin
  • Tawarayama Onsen: The "Yokozuna of the West," a Famed Tōji Hot Spring
  • Togatta Onsen: A Historic Hot Spring Retreat at the Foot of Mt. Zao
  • Togura Kamiyamada Onsen: A Historic Hot Spring for Zenko-ji Pilgrims
  • Tokachidake Onsen: A Heavenly Hot Spring High in Hokkaido's Mountains
  • Totsukawa Onsen: A Secluded Sanctuary with Japan's First 'Gensen Kakenagashi' Declaration
  • Tsuchiyu Onsen | A Village of Kokeshi Dolls and Steam, Boasting Over 10 Spring Types
  • Tsuetate Onsen: A Retro Hot Spring Town Steaming with History
  • Tsukioka Onsen | Emerald Green Hot Springs for Beautiful Skin
  • Tsuta Onsen | A Secluded Hot Spring Gushing from the Forest Floor
  • Unazuki Onsen: Gateway to Kurobe Gorge, a Spring for Beautiful Skin
  • Unzen Onsen: A Highland Resort of Steaming Hells & Seasonal Beauty
  • Ureshino Onsen | One of Japan's Top 3 'Beautiful Skin' Hot Springs
  • Wakura Onsen | A Premier Seaside Hot Spring Overlooking Nanao Bay
  • Yamaga Onsen | A historic hot spring town with silky "beauty water"
  • Yamanaka Onsen: A Historic Hot Spring in a Scenic Gorge
  • Yamashiro Onsen: A Historic Hot Spring Town Steeped in Culture
  • Yoroushi Onsen: A Secluded Hot Spring Retreat in Hokkaido's Wilderness
  • Yubara Onsen: Famed for 'Sunayu,' the Grand Champion of West Japan's Open-Air Baths
  • Yuda Onsen | Yamaguchi's Urban Oasis of the White Fox Legend
  • Yufuin Onsen | A Serene Hot Spring Retreat in Nature and Art
  • Yugawara Onsen | A Historic Hot Spring Village Praised in Ancient Poetry
  • Yuki Onsen: Hiroshima's Hidden Retreat with Historic Radon Waters
  • Yumura Onsen | A Hot Spring Town with a 98°C Source and Rich Culture
  • Yunogo Onsen | Okayama's Famed "Heron's Spring" for Beautiful Skin
  • Yunohama Onsen | A Seaside Hot Spring Resort with Stunning Sunsets over the Sea of Japan
  • Yunomine Onsen: A Sacred Hot Spring for Pilgrims on a World Heritage Trail
  • Yunotsu Onsen: A World Heritage Hot Spring Town, A Timeless Healing Retreat
  • Zao Onsen | A Sky-High Hot Spring Famed for "Snow Monsters"

Recently added hot springs

  • 湯宿温泉 金田屋（群馬県 · 硫酸塩泉）
  • 草津館（群馬県 · 酸性泉）
  • 小川温泉元湯 ホテルおがわ（富山県 · 塩化物泉）
  • 竜泉寺の湯八王子みなみの店（東京都 · 単純温泉）
  • 十勝川モール温泉　静寂房（北海道 · 単純温泉）
  • 白旗源泉（群馬県 · 酸性泉）

Browse by spring type

  • 単純温泉
  • 塩化物泉
  • 炭酸水素塩泉
  • 硫酸塩泉
  • 二酸化炭素泉
  • 含鉄泉
  • 硫黄泉
  • 酸性泉
  • 放射能泉
  • 含よう素泉

Browse by area

  • 群馬県
  • 栃木県
  • 長野県

Guides & Columns

  • View all columns
  • Chloride Springs: Benefits, Indications & Recommended Onsen
  • Simple Springs (Tanjun Onsen): Gentle Waters for Everyone
  • Bicarbonate Springs: "Beauty Waters" for Smooth, Glowing Skin
  • Sulphate Springs: "The Healing Waters" for Wounds, Skin & Digestion
  • Carbon Dioxide Springs: "The Bubble Waters" for Gentle Circulation
  • Ferruginous Springs: Iron-Rich Waters for Anemia & Unique Rust-Red Baths
  • Acidic Springs: Powerfully Antibacterial Waters for Skin Conditions
  • Iodine-Containing Springs: Non-Volcanic Rarity with Cholesterol Benefits
  • Sulphur Springs: Milky White Waters with Powerful Skin Benefits
  • Radioactive Springs: Traditional Radon Waters for Gout & Joint Conditions
  • Metasilicic Acid: The "Beauty Spring" Standard Mineral & Top 5 Onsen
  • Sodium ion: Main Effects & Top 5
  • Calcium ion: Main Effects & Top 5
  • Magnesium ion: Main Effects & Top 5
  • Iron ion: Main Effects & Top 5
  • Sulfide ion: Main Effects & Top 5
  • Bicarbonate ion: Main Effects & Top 5
  • Sulfate ion: Main Effects & Top 5
  • Chloride ion: Main Effects & Top 5
  • Fluoride ion: Main Effects & Top 5
  • Iodide ion: Main Effects & Top 5
  • Bromide ion: Main Effects & Top 5
  • Radon: Main Effects & Top 5
  • Free carbon dioxide: Main Effects & Top 5
  • Metaboric acid: Main Effects & Top 5
  • Hot Springs for Cold Sensitivity | 4 Spring Types Explained
  • Peripheral Circulation Disorders & Onsen | All 10 Spring Types Indicated
  • Hot Springs for Fatigue Recovery | All 10 Spring Types
  • Hot Springs for Autonomic Disorder & Stress | Ministry-Approved Guide
  • Hot Springs for Insomnia | General Indication Across All 10 Spring Types
  • Hot Springs for Chronic Joint Pain & Neuralgia | All 10 Spring Types Including Radon
  • Rheumatoid Arthritis & Onsen | Radon Springs and the General Bathing Indication
  • Depression & Low Mood | Onsen Bathing as Complementary Therapy
  • Muscle Paralysis & Motor Stiffness | Onsen as Rehabilitation Therapy
  • Hot Springs for Beautiful Skin | Bicarbonate, Chloride & Sulfate Springs Explained
  • Hot Springs for Atopic Dermatitis | Sulfur & Acidic Springs: Benefits and Precautions
  • Psoriasis & Onsen | Acidic and Sulfur Springs Officially Indicated
  • Chronic Eczema & Onsen | Sulfur Springs for Antibacterial and Anti-inflammatory Action
  • Skin Infections (Pyoderma) & Onsen | Strong Antimicrobial Action of Acidic and Sulfur Springs
  • Hot Springs for Wound Healing | 4 Spring Types with Antiseptic & Regenerative Effects
  • Hot Spring Therapy for Mild Hypertension | All 10 Types & the Special Role of CO₂ Springs
  • Impaired Glucose Tolerance (Diabetes) & Onsen | Bathing and Drinking Indications
  • High Cholesterol & Onsen | Sulfate, Iodine & Sulfur Spring Drinking Indications
  • Poor Gastrointestinal Function & Onsen | Carbon Dioxide Springs Explained
  • Drinking Spring Water for Constipation | Chloride, Sulfate & Bicarbonate Springs
  • Gastric & Duodenal Ulcers | Bicarbonate Spring Drinking Indication Explained
  • Gastroesophageal Reflux (GERD) & Onsen | Bicarbonate Springs for Acid Neutralisation
  • Atrophic Gastritis & Onsen | Chloride Springs to Stimulate Gastric Acid
  • Biliary Dysfunction & Onsen | Sulfate Springs to Stimulate the Gallbladder
  • Iron Springs for Iron-Deficiency Anemia | Drinking & Bathing Benefits Explained
  • Hot Springs for Gout | Radon Springs (Bathing) & Bicarbonate Springs (Drinking)
  • Ankylosing Spondylitis & Onsen | Radioactive (Radon) Springs Specifically Indicated
  • Mild Asthma & Emphysema | Onsen Bathing and Respiratory Function
  • Haemorrhoid Pain & Onsen | Thermal Improvement of Anal Circulation
  • Post-Illness Recovery & Onsen | Thermal Therapy to Restore Vitality
  • Before You Bathe: Preparation & Safety Checklist | Ministry of Environment Guidelines
  • Safety During Hot Spring Bathing | Heat Stroke, Heat Shock & Soaking Time
  • Drinking Hot Spring Water (Insatsu) | What It Is, Benefits & Safety Rules
  • Hot Spring Contraindications | Conditions & Situations to Avoid Bathing
  • What Is an Onsen? | Japan's Hot Spring Definition & 3 Legal Conditions Explained
  • What Is Spring Type (Senshu)? | Japan's 10 Hot Spring Classifications Explained
  • What Is a Hot Spring Analysis Certificate? | Legal Requirements & How to Read It
  • What Are General Indications? | Health Benefits Common to All Hot Spring Types
  • What Are Contraindications for Onsen? | Conditions & Diseases That Prohibit Bathing
  • What Is Insatsu (Drinking Onsen Water)? | Culture, Benefits & Safety
  • What Is a 'Beauty Spring' (Bijin-no-yu)? | Why Metasilicic Acid Makes Skin Glow
  • Onsen vs. Sentō: What's the Difference? | Japan's Hot Spring Law Explained
  • Japanese Onsen Etiquette Guide | Washing, Towels & Bathing Rules
  • Onsen-Hopping Order | How to Visit Multiple Hot Springs in One Day
  • Tattoos at Japanese Onsen | Policies, Alternatives & Tips for Visitors
  • Mixed-Gender Bathing (Konyoku) in Japan | History, Rules & What to Expect
  • Private Family Baths (Kashikiri-buro) | How to Book & What to Expect
  • Onsen with Kids | Age Rules, Safety Tips & Choosing the Right Facility
  • Lake Akan Onsen: A Mystical Lakeside Resort of Marimo and Ainu Culture
  • Akiu Onsen | A Historic Retreat Loved by Date Masamune
  • Amagase Onsen | A Historic Hot Spring Town Along a Picturesque River
  • Arima Onsen: One of Japan's Three Ancient Springs with Golden & Silver Waters
  • Asahidake Onsen: A Heavenly Hot Spring in Daisetsuzan National Park
  • Asama Onsen | The Historic Hot Spring Retreat of Matsumoto Castle
  • Asamushi Onsen | A Seaside Hot Spring Resort Overlooking Mutsu Bay
  • Aso Uchinomaki Onsen: A Famed Hot Spring Village in the Aso Caldera
  • Atami Onsen: A Historic Seaside Hot Spring Resort Favored by Shoguns
  • Awara Onsen | A Refined Hot Spring Town, Kansai's 'Inner Parlor'
  • Beppu Onsen | Japan's Top Hot Spring by Volume and Variety
  • Bessho Onsen: A historic 'Beauty Bath' in the 'Kamakura of Shinshu'
  • Dake Onsen | Milky White Hot Springs at the Foot of Mt. Iwaki
  • Dake Onsen | Milky White Acidic Springs at the Foot of Mt. Adatara
  • Dogo Onsen | Japan's Oldest Hot Spring, Loved by Literary Figures
  • Ebino Kogen Onsen: Sulfur Springs in the Heart of the Kirishima Mountains
  • Echigo-Yuzawa Onsen: Skiing and Hot Springs in Japan's 'Snow Country'
  • Fukuji Onsen: A Nostalgic Retreat in the Okuhida Mountains
  • Fukuroda Onsen: A Serene Hot Spring by Japan's Famed Fukuroda Falls
  • Furuyu Onsen | A tranquil Saga retreat for healing in lukewarm waters
  • Futsukaichi Onsen: An Ancient Hot Spring Praised in Man'yoshu Poetry
  • Gero Onsen | One of Japan's Three Famed Springs, the "Spring of Beauty"
  • Geto Onsen | The King of Touji, a secluded hot spring in a heavy-snow region
  • Ginzan Onsen | A Picturesque Hot Spring Town with Taisho-Era Charm
  • Hachimantai Onsen-go: A Hot Spring Village with Diverse Waters in a National Park
  • Hakone Onsen: A Scenic Hot Spring Resort with Diverse Waters near Tokyo
  • Hanamaki Minami Onsenkyo: A Valley of Hot Springs Loved by Poets
  • Harazuru Onsen | Fukuoka's Hot Spring for "Double Beauty" Waters
  • Higashiyama Onsen | A Historic Hot Spring Retreat in Aizu's Backyard
  • Hijiori Onsen | A Secluded Hot Spring with 1200 Years of Toji Culture
  • Hinagu Onsen: A tranquil hot spring retreat in Kumamoto with 600 years of history
  • Hirayu Onsen: Gateway to Okuhida, Nestled in the Northern Alps
  • Hoshi Onsen: A Historic Inn with Springs Bubbling from Below
  • Ibusuki Onsen | Detox in a World-Famous Natural Sand Steam Bath
  • Iizaka Onsen | A Historic Hot Spring Town Loved by Basho
  • Ikaho Onsen | A Historic Hot Spring Town with Iconic Stone Steps
  • Isawa Onsen | A Hot Spring Oasis in Japan's Wine Country
  • Itamuro Onsen | A National Health Resort for Healing in Tepid Waters
  • Ito Onsen: A Historic Hot Spring Town with Abundant Waters
  • Jozankei Onsen: Sapporo's Hidden Retreat of Scenic Gorges and Healing Waters
  • Kaike Onsen: A Seaside Hot Spring Resort with Salt-Rich Waters
  • Kakeyu Onsen | A National Health Resort for Healing Mind and Body
  • Kamisuwa Onsen: A Historic Hot Spring Resort on the Shores of Lake Suwa
  • Kannawa Onsen | A Beppu Hot Spring Village of Rising Steam and Healing Waters
  • Kawaji Onsen: A Serene Valley Hot Spring Known for Healing
  • Kawayu Onsen: A Potent Acidic Spring in Akan-Mashu National Park
  • Kawayu Onsen | Dig Your Own Hot Spring by the River
  • Kinosaki Onsen | A Tale of Seven Public Hot Springs, Explored in Yukata
  • Kinugawa Onsen: A Scenic Hot Spring Resort in a Grand Valley
  • Kirishima Onsen-go | A diverse hot spring village steeped in mythology
  • Kurokawa Onsen: A Charming Village for Onsen-Hopping
  • Kusatsu Onsen | One of Japan's Top 3 Hot Springs
  • Kyomachi Onsen: A Tranquil Hot Spring Retreat in Rural Miyazaki
  • Manza Onsen | Japan's Premier High-Altitude Sulfur Spring
  • Matsunoyama Onsen: A Top Medicinal Spring with Ancient Seawater
  • Minakami Onsen-go: A Nature Lover's Hot Spring Retreat at Mt. Tanigawa's Base
  • Misasa Onsen | A World-Class Radon Spring for Healing Inside and Out
  • Myoken Onsen: A Historic Hot Spring Retreat Along the Amorigawa River
  • Myoko Onsen-go | A Highland Resort with Seven Springs and Four Seasons
  • Nagato Yumoto Onsen: A Stylish, Reborn Riverside Hot Spring Town
  • Nagayu Onsen: Japan's Premier Carbonated Spring, the 'Soda Pop Spa'
  • Naruko Onsen-go: A 'Department Store' of Hot Springs with 8 Spring Qualities
  • Nasu Onsen-go: A Highland Resort with Imperial Roots
  • Niseko Onsen-go | Powder Snow Meets a Variety of Hot Springs
  • Noboribetsu Onsen | The 'Department Store of Hot Springs'
  • Nozawa Onsen: A Historic Hot Spring Village with Skiing and Tradition
  • Nyuto Onsen-go | A Secluded Hot Spring Village of Seven Unique Inns
  • Obama Onsen: Japan's Hottest Spring with Stunning Sunset Views
  • Oga Onsen-go: Hot Springs in the Land of the Namahage
  • Ogoto Onsen: Lakeside Views of Biwa and Skin-Beautifying Waters
  • Oigami Onsen: A Legendary Hot Spring in a Scenic Gorge
  • Okukinu Onsen-go | Kanto's Last Hidden Gem, A Sanctuary of Natural Springs
  • Okutsu Onsen: A "Beauty Bath" Hot Spring Famous for its Foot-Washing Tradition
  • Osawa Onsen | A Riverside Hot Spring Retreat Loved by Kenji Miyazawa
  • Oshuku Onsen: A Healing Hot Spring with 450 Years of History, Morioka's Retreat
  • Rendaiji Onsen | A tranquil, historic hot spring once visited by Yoshida Shoin
  • Ryujin Onsen | One of Japan's Three Great "Beautifying" Hot Springs
  • Sakakibara Onsen | The "Beauty Bath" Praised in The Pillow Book
  • Sakunami Onsen: Sendai's Serene Retreat, the "Waters of Beauty"
  • Senami Onsen | Breathtaking Sunsets Over the Sea of Japan
  • Shibu Onsen: A Historic Town of Cobblestone Streets and Nine Bath巡り
  • Lake Shikaribetsu Onsen: A secluded hot spring by a celestial lake in Daisetsuzan National Park
  • Shima Onsen | A historic spa famed for healing '40,000 ailments'
  • Shimobe Onsen | A Famed Hot Spring Known as Takeda Shingen's Hideaway
  • Shin-Hirayu Onsen: A Tranquil Hot Spring Retreat in the Okuhida Mountains
  • Shiobara Onsen-go | A Valley of Seven-Colored Waters with 1,200 Years of History
  • Shionoe Onsen: Kagawa's tranquil retreat with ties to Kobo Daishi
  • Shirahama Onsen | One of Japan's Three Ancient Hot Springs by a White Sandy Beach
  • Shirahone Onsen | A Secluded Hot Spring with Milky-White Waters
  • Shuzenji Onsen: The 'Little Kyoto' of Izu, a historic spa town
  • Sounkyo Onsen: A Gorge of Grandeur in Daisetsuzan National Park
  • Sukayu Onsen | Japan's First National Hot Spring Health Resort in the Heart of Hakkoda
  • Takayu Onsen: A Famed Hot Spring with Milky-White, Free-Flowing Waters
  • Takeo Onsen: A 1,300-Year-Old "Beauty Bath" with an Iconic Tower Gate
  • Tamagawa Onsen | Japan's Most Acidic Hot Spring for Healing
  • Tamatsukuri Onsen | A Fabled Hot Spring, Japan's Ancient Spa for Beautiful Skin
  • Tawarayama Onsen: The "Yokozuna of the West," a Famed Tōji Hot Spring
  • Togatta Onsen: A Historic Hot Spring Retreat at the Foot of Mt. Zao
  • Togura Kamiyamada Onsen: A Historic Hot Spring for Zenko-ji Pilgrims
  • Tokachidake Onsen: A Heavenly Hot Spring High in Hokkaido's Mountains
  • Totsukawa Onsen: A Secluded Sanctuary with Japan's First 'Gensen Kakenagashi' Declaration
  • Tsuchiyu Onsen | A Village of Kokeshi Dolls and Steam, Boasting Over 10 Spring Types
  • Tsuetate Onsen: A Retro Hot Spring Town Steaming with History
  • Tsukioka Onsen | Emerald Green Hot Springs for Beautiful Skin
  • Tsuta Onsen | A Secluded Hot Spring Gushing from the Forest Floor
  • Unazuki Onsen: Gateway to Kurobe Gorge, a Spring for Beautiful Skin
  • Unzen Onsen: A Highland Resort of Steaming Hells & Seasonal Beauty
  • Ureshino Onsen | One of Japan's Top 3 'Beautiful Skin' Hot Springs
  • Wakura Onsen | A Premier Seaside Hot Spring Overlooking Nanao Bay
  • Yamaga Onsen | A historic hot spring town with silky "beauty water"
  • Yamanaka Onsen: A Historic Hot Spring in a Scenic Gorge
  • Yamashiro Onsen: A Historic Hot Spring Town Steeped in Culture
  • Yoroushi Onsen: A Secluded Hot Spring Retreat in Hokkaido's Wilderness
  • Yubara Onsen: Famed for 'Sunayu,' the Grand Champion of West Japan's Open-Air Baths
  • Yuda Onsen | Yamaguchi's Urban Oasis of the White Fox Legend
  • Yufuin Onsen | A Serene Hot Spring Retreat in Nature and Art
  • Yugawara Onsen | A Historic Hot Spring Village Praised in Ancient Poetry
  • Yuki Onsen: Hiroshima's Hidden Retreat with Historic Radon Waters
  • Yumura Onsen | A Hot Spring Town with a 98°C Source and Rich Culture
  • Yunogo Onsen | Okayama's Famed "Heron's Spring" for Beautiful Skin
  • Yunohama Onsen | A Seaside Hot Spring Resort with Stunning Sunsets over the Sea of Japan
  • Yunomine Onsen: A Sacred Hot Spring for Pilgrims on a World Heritage Trail
  • Yunotsu Onsen: A World Heritage Hot Spring Town, A Timeless Healing Retreat
  • Zao Onsen | A Sky-High Hot Spring Famed for "Snow Monsters"