Simple Springs (Tanjun Onsen): Gentle Waters for Everyone

Once beloved by the local community as "Morizane Onsen," this spring was reborn in 2003 as "Yasuragi no Sato Yamakuni." Gushing from 1,000 meters underground at the foot of Mt. Hiko in Yamakuni, the Yasuragi no Sato Yamakuni Gensen is a gentle simple spring nurtured by the rich nature of Oku-Yabakei. Its mildly alkaline water, with a pH of 7.9, is exceptionally soft on the skin and minimally irritating, making it suitable for everyone from children to the elderly.

Tokachigawa Onsen's Moor Onsen is a globally rare plant-derived hot spring, formed as ancient plants accumulated over eons, filtering through lignite layers. Its amber-colored waters, akin to a beauty serum, gently envelop the skin, providing natural moisture and promoting silky skin. Embraced by the magnificent nature of the Tokachi Plain, this gentle warmth, infused with the earth's blessings, fosters deep relaxation and rejuvenation for both mind and body. It is ideal for travelers seeking to escape daily hustle and quietly reset their inner balance.

As its name "Asagiri no Yu" (Morning Mist Bath) suggests, this source gushes forth in a location overlooking the Yufuin Basin's magical morning mist. It is a private source nurtured by one of Yufuin's most historic establishments, founded in 1911. The alkaline simple spring is gentle on the skin. Its abundant metasilicic acid helps to wash away old skin cells, leaving your skin feeling silky smooth. It is a renowned spring perfect for days when you wish to quietly reset your mind and body at the foot of Mt. Yufu.

This private spring gushes near Lake Kinrin in Yufuin, one of Japan's premier onsen destinations. The ETAVIA Yufuin Kinrinko Gensen is a simple hot spring, blessed by Mt. Yufu, known for being gentle and non-irritating to the skin. Within the history of Yufuin, long cherished as a health resort, this water has quietly soothed the minds and bodies of its visitors. Surrendering to the bath, you'll feel a smooth, lotion-like texture envelop your skin, allowing you to forget the hustle and bustle of daily life. It is a spring full of gentleness, recommended for those seeking a moment of peace.

This naturally gushing mixed source is located about 7km upstream from Unazuki Onsen, nestled within the Kurobe Gorge's Kuronagi Onsen area. Since its water was first drawn through wooden pipes in Taisho 12 (1923), it has continuously supplied a generous 2,100 liters per minute of hot spring water to the Unazuki Onsen town. Renowned as Japan's clearest, its soft waters gently embrace the skin and offer a restorative warmth that permeates deep into the body. It is highly recommended for those seeking deep relaxation, rejuvenation, and a chance to forget daily fatigue amidst the blessings of magnificent nature.

The Izumi Gōi Gensen is the vital source supporting Onneyu Onsen, a renowned hot spring in Hokkaido, whose name translates to "large hot water" in the Ainu language. Since its establishment in 1899, this region has been cherished as a "skin-beautifying spring." The thick, highly alkaline water from this source gently envelops the skin, leaving it remarkably smooth and silky after bathing, as if adorned with a delicate veil. It is an ideal spring for those wishing to experience nature's blessings and enhance their skin's condition.

This is one of the private sources gushing in Yufuin Onsen, one of Japan's most popular hot spring resorts. The "On-yu" source is a simple hot spring drawn from within the property, known for being gentle and suitable for everyone due to its low mineral content. Its weak alkalinity of pH 8.2 gently removes dead skin cells, leaving the skin feeling smooth. Rich in metasilicic acid, a natural moisturizing component, it helps hydrate the skin after bathing. This spring is recommended for those seeking a gentle bath to unwind both body and soul while surrounded by the majestic nature of Mount Yufu.

Nestled in Noboribetsu Onsen, famously called the "Department Store of Hot Springs" and rooted in the Ainu "Nupur-pet" (deeply colored river), the historic "Uma no Yu" source has flowed since Taisho 6 (1917). Its faint sulfur aroma gently unwinds the mind and body. The waters, softly enveloping the skin, warm the body to its core, providing restorative warmth that lingers. Overlooking a beautiful Japanese garden, this tranquil spring offers deep relaxation, a serene escape from daily commotion.

The Villa Reine source is a private hot spring drilled for the "Villa Reine" accommodation, located in the Kamegawa Onsen area, one of the eight famous springs of Beppu. This region has long been known as a therapeutic spa area with a charming, tranquil seaside atmosphere. With a weakly alkaline pH of 7.7, this gentle spring is ideal for long, relaxing soaks. Its abundant metasilicic acid helps to moisturize the skin, leaving it feeling silky smooth after bathing. It is the perfect spring for those wishing to deeply heal mind and body away from the hustle and bustle of daily life.

Amagase Onsen is one of Bungo's three great hot springs, alongside Beppu and Yufuin. The Ukihabekan Shinshiyo source is drawn via a 150-meter deep powered drill from a hillside site. With over 1,300 years of history, Amagase's waters were mentioned in the ancient "Bungo Fudoki" chronicles and have long been cherished for therapeutic bathing. This source combines pH 8.9 alkalinity with sulfur properties, gently removing old skin cells for a smooth feel. You can enjoy a silky skin sensation after bathing, perfect for those seeking to refresh mind and body.

This private source is pumped from 300 meters underground in the port area of Beppu, Japan's premier onsen city. Drilled exclusively for the Hotel Sun Valley Annex, this spring delivers the blessings of Beppu's waters to its visitors. [3] The simple, mildly alkaline thermal water is gentle and characterized by a smooth texture that softly envelops the skin. After bathing, the skin feels silky and deeply moisturized. It is an ideal spring for those seeking to gently unwind both body and mind amidst the energy of Beppu.

The Sanso Tensui source is a private spring nestled in the mountains of Amagase Onsen, one of Oita's three great hot springs alongside Beppu and Yufuin. Established in 1995 on a vast 10,000-tsubo (approx. 33,000 m²) estate overlooking the famous Sakurataki Falls, this relatively new source gushes forth pure, heavenly water. The high-temperature 64.5°C spring water is used free-flowing with added cool water, known for its gentle, smooth touch on the skin. Surrounded by the murmur of a clear stream and lush greenery, it offers deep healing and tranquility to those wishing to escape the city's hustle and bustle.

This hidden gem springs forth in Akiruno, a city in Tokyo blessed with abundant nature. Its most remarkable feature is its exceptionally high alkalinity, with a pH of 10.01, one of the highest in Japan. The water feels silky and lotion-like, and is traditionally associated with smoothing the skin. It is a gentle and soothing spring, perfect for those seeking to heal daily fatigue and refresh both mind and body.

Born in Fukuji Onsen, nestled in the mountains of Okuhida, where multiple sources merge into one. This special blend embodies the blessings of a land long cherished for its therapeutic waters. The soft, near-neutral water with a pH of 7.16 gently envelops the skin, while the high 95°C source delivers warmth to your core. This onsen is for those seeking to escape the everyday hustle, deeply relax their mind and body, and cherish themselves in a tranquil moment.

The Poppo-an source is a private wellspring drilled in the tranquil countryside of Yufuin, one of Japan's premier onsen destinations. Located amidst serene landscapes with views of Mt. Yufu, its name is said to derive from the beloved local train that runs nearby. This alkaline simple spring is characterized by its gentle, non-irritating waters that seem to smoothly envelop the skin. After bathing, your skin will feel deeply moisturized, filling both mind and body with profound relaxation.

Nestled within the grounds of Suzuka Circuit, one of the world's premier racing courses, this unique hot spring has offered a soothing retreat to race fans and families since its 1994 opening. Its weakly alkaline waters, drawn from underground, are gentle on the skin with minimal irritation, effortlessly permeating the body. Ideal for cooling race excitement and gently refreshing an uplifted mind and body, this spring continues its legacy of healing in a renewed form since 2023, providing tranquility to all visitors.

Noboribetsu Onsen, Hokkaido's renowned hot spring, often called a 'department store of hot springs,' began its formal history in the Edo period when Takimoto Kinzo established a therapeutic bath. Despite the rugged landscape of 'Jigokudani' (Hell Valley), an explosive crater site said to be home to demons, the waters, a bounty from this earth, are filled with powerful healing. This acidic, sulfur-scented spring water thoroughly cleanses the skin and delivers restorative warmth deep into the body. It is highly recommended for those who wish to feel the energy of nature and experience a dynamic rejuvenation of mind and body.

Osawa Onsen, a famed hot spring in Iwate reportedly beloved by author Kenji Miyazawa, draws from the "Osawa-no-Yu" source. It boasts a silky, lotion-like texture, a gift of its high alkalinity at pH 9.0. Soaking in this smooth water, like a fine lotion, gently exfoliates the skin, leaving it feeling exceptionally smooth after your bath. It's a gentle, healing spring that soothes both mind and body, perfect for those seeking a peaceful escape to unwind and care for themselves.

Opened in 2004, Ohara Onsen in Kyoto's Ohara district offers a colorless, transparent spring nestled in a mountain village near renowned temples like Sanzen-in and Jakkō-in. Its signature feature is a gentle, soft texture that delicately envelops the skin. Immersing yourself in this weakly alkaline, smooth water amidst the ancient capital's tranquility will slowly release tension from your stiff body and mind. This onsen is perfect for those seeking serene moments surrounded by abundant nature, far from the daily hustle.

Kuronagi Onsen, a major source gushing from the Kuronagi River, a tributary of the Kurobe River, was discovered in 1645 by Tarozaemon of Otozawa Village. During the Edo period, it was renowned as a hidden hot spring of the Kaga Domain. Its colorless, transparent, and soft waters gently envelop the skin, warming the body to its core. After bathing, you feel surprisingly light, with a sense of rejuvenation from within. This blessed spring, whose waters are also delivered to Unazuki Onsen about 7 kilometers away, offers solace to those seeking to liberate mind and body amidst grand nature and rediscover their true self.

This private source gushes forth in Yufuin Onsen, one of Japan's leading hot spring resorts. Nurtured in the tranquil environment of the Yufuin Basin, this source boasts a generous flow. The mildly alkaline water, with a pH of 8.5, is soft to the touch, clear, and gentle, making it appealing to everyone. Containing an exceptionally high 302.0 mg/kg of metasilicic acid, it is expected to leave the skin feeling moist and silky smooth after bathing. It is an ideal spring for those seeking a peaceful bath to release mind and body while feeling the grand nature of Mt. Yufu.

The Miyagino Combined Spring supplies the Gora Onsen area, one of Hakone's 17 famous springs. Since successful drilling around 1965, this source has supported the development of the Miyagino district as a health resort. By blending multiple sources, it maintains a stable volume and quality. The soft, weakly alkaline water is gentle on the skin, leaving it feeling smooth after bathing. It is recommended for those seeking a moment of peace to gently unwind both body and mind amidst Hakone's rich nature.

The Oyado Yuraku Gensen is a private source bubbling up in the central area of Yufuin Onsen, a town known for its idyllic rural landscapes at the foot of Mt. Yufu. Many of Yufuin's springs, a long-cherished health resort area, are classified as simple hot springs gentle on the skin. This source is one of them, characterized by its mild and soft touch. Immersing yourself in its waters feels like being embraced by the serene nature of Yufuin, offering a peaceful respite for resetting mind and body away from daily life.

Gushing in the Kannawa Onsen area, one of the eight springs of Beppu, Japan's top onsen destination, the Akari no Yado Tougetsu Gensen is a relatively new source, drilled and pump-lifted for a facility that opened in 2019. It offers modern relaxation while inheriting the traditions of Kannawa, long-famed as a therapeutic spa area. With a neutral pH of 6.8, close to human skin, the water is gentle and suitable for everyone. Immersing yourself in these waters helps you forget the hustle and bustle of daily life, deeply relaxing both mind and body.

This Radon-sen No. 1 source plays a key role as one of the "Ginsen" (Silver Springs) that color the history of Arima Onsen, one of Japan's three ancient hot springs. In contrast to the reddish-brown "Kinsen" containing iron, Ginsen is characterized by its clear, smooth feel. The water from this source is said to gently stimulate cells and vitalize the body as it's absorbed through breathing.

Hakone Yumoto Onsen, said to have been discovered in the Nara period, is home to Yumoto Onsen No. 3. This source quietly gushes from its location in the deepest part of the area, along the Sugumo River valley. Excavated as a horizontal tunnel during the Meiji period, this naturally gushing spring yields soft, alkaline waters that gently envelop the skin. After a bath, one can expect a feeling of lightness, both in body and mind. It continues to be cherished and utilized by surrounding onsen facilities, beloved by those seeking to quietly restore their body and mind amidst abundant nature.

Hakone-Yumoto Onsen, said to have opened in the Nara period, boasts the oldest history in Hakone. This Yumoto No. 29 & 46 Goko-sen is a blend of multiple sources from this historic spa town. It is used in public bathhouses along the old Tokaido road, having soothed weary travelers for centuries.

This private source is located in the renowned Yufuin Onsen, nestled at the foot of Mt. Yufu. Pumped from 200 meters underground, the Yubunosato Ryoso Makibanoie source is a weakly alkaline simple spring with a pH of 8.1. Yufuin has long been cherished as a therapeutic spa town, establishing itself as a tranquil retreat by intentionally avoiding a bustling entertainment district. Embodying this philosophy, the water is exceptionally gentle and kind to the skin. Steeping in these waters allows you to forget the daily hustle and embrace a serene moment, as if held by Yufuin's abundant nature.

Nestled in a tranquil Yamanashi City village, Shotokuji Onsen is a simple, therapeutic hot spring, cherished by locals for generations. Its highly alkaline waters, boasting a pH of 9.5, offer a thick, serum-like texture. As you slowly immerse yourself in the lukewarm bath, daily stiffness gently melts away, offering deep relaxation and potential pain relief. After your soak, anticipate surprisingly silky skin and a renewed sense of rejuvenation, perfect for those seeking an escape from the hustle to indulge in self-care.

This hot spring embodies the enduring passion of pioneers, delivered from Kuronagi Onsen in the upper reaches of the Kurobe River to Unazuki Onsen, approximately 7km downstream, after arduous wooden pipe laying construction in Taisho 12 (1923). Gushing at an abundant rate of approximately 2,000 liters per minute, its colorless and transparent waters seem to embody the pristine clarity of the gorge itself. With a soft touch that gently envelops the skin, it slowly warms the body to its core. Ideal for those seeking to unwind their mind and body, embraced by nature, at the various inns and public bathhouses throughout the town.

Gushing in the renowned Yufuin Onsen region, the Nurukawa Onsen source is beloved for its tranquil setting despite being conveniently located near Lake Kinrin. This spring is characterized by its soft, clear, and gentle water, a classic simple onsen cherished by many facilities in Yufuin. Its weakly alkaline nature is mild on the skin, leaving you feeling refreshed yet deeply warmed after bathing. It's the perfect spring for days when you want to gently unwind both mind and body amidst the idyllic scenery of Mount Yufu.

Gently bubbling forth in the Yufuin basin at the foot of the famed Mount Yufu, Tanokura Onsen is one of the area's many distinctive springs. This region has long been cherished as a therapeutic hot spring destination. This specific source is characterized by its silky-smooth texture, a gift of its weak alkalinity with a pH of 8.4. The water gently envelops the skin, leaving it feeling deeply moisturized after bathing. It is a tranquil spring that offers solace to those wishing to escape the hustle and bustle and unwind in a serene, natural setting.

The MISORA YUFUIN source emerges in Yufuin, a hot spring village at the foot of Mt. Yufu. As a gentle alkaline simple spring with low irritation, it is suitable for everyone, from babies to the elderly. Steeping in these waters feels like being enveloped in a rich lotion, its thick texture deeply moisturizing dry skin. In this land surrounded by abundant nature, you can forget the hustle and bustle of daily life and enjoy a tranquil time to release your mind and body.

Nestled in Kasugai-cho, Fuefuki City, Yamanashi Prefecture, a region renowned for its grape cultivation, this gentle hot spring is a true blessing from the earth, cherished by locals for generations. Its lukewarm waters, around 36.3℃, offer a comfort that invites you to linger indefinitely. The soft, weakly alkaline water delicately envelops the skin, gradually releasing tension from the body's core. It's a soothing retreat for those seeking to alleviate daily fatigue and find deep relaxation in mild waters.

This is one of the most well-known sources in Noboribetsu, a leading onsen destination in Hokkaido. It continuously flows at a high temperature of 96.5°C, embodying the raw power of the earth. The highly acidic water, with a pH of 2.2, provides a tingling sensation on the skin and a refreshing feeling after bathing. Its rich iron and sulfate content offers a powerful bathing experience that feels as if it's awakening both mind and body. It's a spring for those who wish to reset from daily fatigue, gain new vitality, and feel nature's energy throughout their entire being.

Hakone Yumoto Onsen, the historic gateway to Hakone Onsenkyo, opened in the Nara period and flourished as the foremost of the 'Hakone Nanayu' (Seven Hot Springs of Hakone) during the Edo period. This particular hot spring vein, a pillar of the region's heritage, offers thick, soft waters that gently envelop the skin, promoting deep relaxation for both mind and body. After bathing, the wonderfully smooth skin feel provides a comforting embrace, inviting guests to forget daily hustle and bustle and indulge in self-care.

In the renowned Yufuin Onsen, nestled at the foot of Mt. Yufu, the "Kawamoto Bettei Garden Gensen" is drawn from 150 meters underground. This source was developed exclusively for a private lodging, born to provide a serene bathing experience enveloped by Yufuin's tranquil nature. The weakly alkaline water gently embraces the skin, leaving it feeling smooth after bathing. It is a special, healing spring perfect for days when you want to escape the hustle and bustle and cherish time for yourself.

Once a desolate area called "Lesser Hell," this land was renamed Kowakidani following a visit by Emperor Meiji, sparking its development as a hot spring resort. This combined source is one of several springs utilized in this historic onsen town. Developed by entrepreneurs in the Meiji era, the area saw the construction of numerous inns and villas. This very source has supplied water to accommodations throughout the Kowakidani area, laying the foundation for Hakone's modern onsen culture.

Gushing forth in the Yufuin Onsen area at the foot of Mt. Yufu, the Yufuin Yubel Hotel No. 1 Spring embodies the town's spirit. Yufuin, one of Japan's most famous hot spring resorts, has a history of avoiding boisterous development, instead cultivating a tranquil retreat where pastoral landscapes meet art. This alkaline simple spring, with its low-irritant properties, is a perfect expression of that philosophy. The soft, pH 8.5 water gently envelops the skin, leaving it feeling smooth and refreshed after bathing. It is a fine spring that offers a peaceful escape for those seeking to unwind both body and soul.