Atrophic Gastritis & Onsen | Chloride Spring Drinking Indication

Iwanai Onsen spreads across the heights of Iwanai, a town facing the Sea of Japan, at the foot of Mt. Iwanai in the Niseko range. The town-owned Well No. 5 is pumped at a generous 290 L per minute and supplied to inns such as Takashima Ryokan below. The water is clear and nearly tasteless and odorless, with a balance of bicarbonate and chloride, and its smooth touch has earned it a reputation as a skin-beautifying bath. At Takashima Ryokan the source flows straight into the indoor bath and a wooden outdoor tub, where fine bubbles rise through the fresh water.

Nestled in the scenic town of Matsuyama, this spring has long been cherished for relieving traveler fatigue, boasting robust eagle-like properties. The hypertonic chloride waters envelop the skin, smoothly expelling excess fluids and metabolic waste. The lightness after bathing and deep-penetrating warmth soothe the mind and body, freeing you from daily stress. Ideal for those with chronic stiffness or cold extremities, and perfect for weekend rejuvenation.

The Kowakien Kyokyu Onsen is a steam-generated spring developed since 1949 to supply the Hakone Kowakien resort area. It utilizes geothermal heat from former fumarolic activity along the Kurumazawa stream, a tributary of the Jakotsu River, blending multiple sources and natural spring water. This source is widely distributed to the various facilities of the Hakone Kowakien resort, operated by Fujita Kanko, forming the foundation of the entire resort.

This spring rose in 1985 from a 1,500 m well in Naganuma, a farming town at the eastern edge of the Ishikari Plain beneath the Umaoi Hills, and was designated a national health-resort hot spring in 1988. It is a hypertonic strong saline water with over 20 g/kg of dissolved minerals, including 11.2 mg/kg of iodide and 356.2 mg/kg of metaboric acid, with a sea-like salty taste. It suits anyone wanting to warm up to the core after a day in the fields or on the park-golf course.

The Oyu source of Shimofuro Onsen carries a sulfur scent so strong that the place name is said to come from the Ainu word "shumafura," meaning "smelly rock." Recorded as "Yumoto" on a Muromachi-period map and bathed in by a Nanbu domain lord in 1656, this pH 2.4 acidic water turns milky as its sulfur flakes swirl, leaving a brisk, tightening touch and a lingering saline warmth. It suits those who wish to steep quietly in a strong sulfur spring within a port town that once thrived as a herring fishermen's spa.

Drilled at Naruto in Ajigasawa's Maito district, Naruto Onsen is described as "fossil seawater": ancient sea brine trapped underground long ago. With more than 21 g of dissolved minerals per kilogram, the pale-yellow water tastes intensely salty with a hint of bitterness, much like the sea itself. The Naruto source leaves a fine film of salt on the skin, so its warmth lingers long after the bath, making it a natural companion for anyone thawing out beside the winter Sea of Japan.

Asahidake Onsen was discovered in 1914, in a valley the Ainu called Yukomanbetsu, "the river that flows toward the hot water." Hotel Bear Monte, three minutes on foot from the Asahidake Ropeway base station, opened in 2003 and was renewed in 2022. Its clear sulfate water, once classed as a gypsum spring, is known locally as the "healing waters" for its gentle feel, and the large baths offer tubs at different temperatures for resting after hiking or skiing.

The Mandaiko source, originating from traces of past mining development, is deeply intertwined with Kusatsu Onsen's unique yumomi culture and its long history of toji (therapeutic bathing). Its highly acidic waters, among Japan's most potent, deliver a distinctive tingling sensation, awakening both mind and body and offering a sense of rejuvenation. The high-temperature blessings penetrate deep into the core, leaving you with a surprisingly light and refreshed feeling after your bath. We invite those seeking a genuine toji experience, a true escape from daily life to restore their mind and body, to discover the profound power of this spring.

Kinosaki Onsen's centrally managed mixed spring gathers water from several wells into a large storage tank, where its temperature is steadied before it flows through a looped pipe beneath the streets to the town's public bathhouses and inns. Managed as a shared resource by the Yushima property ward of Kinosaki, this faintly salty water wraps the body in warmth that lingers long after bathing, suiting travellers who stroll from bath to bath in yukata.

This specific spring, pump-lifted from the underground of Higashi 3-chome in Jozankei Onsen—Sapporo's tranquil retreat—has been affectionately known since ancient times as 'Atsu no Yu,' or the 'Hot Water Spring.' Its unique salt components form a delicate veil on the skin, providing a restorative warmth that gently permeates the body's core. The comforting heat continues long after your bath, aiding in deep relaxation and relieving daily tension. It's a soothing haven for those wishing to escape urban hustle and achieve a profound sense of rejuvenation.

Kinosaki Onsen's centrally managed mixed spring gathers water from several wells into a large storage tank, where its temperature is steadied before it flows through a looped pipe beneath the streets to the town's public bathhouses and inns. Managed as a shared resource by the Yushima property ward of Kinosaki, this faintly salty water wraps the body in warmth that lingers long after bathing, suiting travellers who stroll from bath to bath in yukata.

Kinosaki Onsen's centrally managed mixed spring gathers water from several wells into a large storage tank, where its temperature is steadied before it flows through a looped pipe beneath the streets to the town's public bathhouses and inns. Managed as a shared resource by the Yushima property ward of Kinosaki, this faintly salty water wraps the body in warmth that lingers long after bathing, suiting travellers who stroll from bath to bath in yukata.

Kinosaki Onsen's centrally managed mixed spring gathers water from several wells into a large storage tank, where its temperature is steadied before it flows through a looped pipe beneath the streets to the town's public bathhouses and inns. Managed as a shared resource by the Yushima property ward of Kinosaki, this faintly salty water wraps the body in warmth that lingers long after bathing, suiting travellers who stroll from bath to bath in yukata.

Gora Onsen is a unique "steam-created spring," established in the early Showa period, born from the reaction between volcanic steam from Owakudani and water from Sengokuhara. This blessing embodies the fusion of Hakone's natural power and human ingenuity. A gentle salt veil envelops the skin, delivering heat deep into the body's core, ensuring restorative warmth that lingers long after your bath. It's the perfect spring to soothe the fatigue of an active day and quietly replenish your vitality for tomorrow.

Misasa Onsen is said to have been discovered some 850 years ago when a samurai who spared a white wolf was guided to the spring in a dream, and its name is linked to the belief that "by the third morning, ailments are healed." It is known for radium springs with some of the world's highest radon levels. Gankutsu-no-Yu uses the natural rocks along the Mitoku River, and water rises on its own from the floor of each of its three tubs, sending small bubbles up around your feet.

A blessed spring gushing forth in Okuhida Onsen-go, nestled in the heart of the Northern Alps. With a long history of healing the minds and bodies of travelers and bathers, this source is renowned as a 'silky skin spring' due to its abundant bicarbonate ions that smooth the skin. As you immerse yourself, the faint scent of hydrogen sulfide will help release you from the hustle and bustle of daily life. It is recommended for those who wish to refresh both mind and body and seek deep tranquility in nature.

Kinosaki Onsen's centrally managed mixed spring gathers water from several wells into a large storage tank, where its temperature is steadied before it flows through a looped pipe beneath the streets to the town's public bathhouses and inns. Managed as a shared resource by the Yushima property ward of Kinosaki, this faintly salty water wraps the body in warmth that lingers long after bathing, suiting travellers who stroll from bath to bath in yukata.

Togatta Onsen is said to date back to the early Edo period, growing along the Matsukawa River that flows from the Zao range. This high-temperature well holds 296.0 mg of sodium, with bicarbonate (320.3 mg), sulfate (224.5 mg) and chloride (196.9 mg) in nearly equal shares. With 117.2 mg of metasilicic acid it feels silky on the skin. Wrapped in brown mineral flakes, it is like a quiet, wise elder of the forest.

Near the foot of Mount Yufu, this spring bursts unaided from almost 500 m down at close to boiling. Clear as it emerges, it shifts to pale and milky blue in air and light. Salty and alkaline, it clings slipperily to the skin, and its saline film holds warmth long after bathing.

Yugawara Onsen, sung of in the Man'yoshu as the water that "springs forth in the valley of Dohi in Ashigari," is one of Japan's oldest recorded hot springs. The Yugawara Onsen Mixed Source (Gongenyama Service Center) blends several of the town's wells into a single supply at 61.7°C and pipes it to inns across the resort. Its chloride and sulfate content gives a soft, enveloping feel, and warmth lingers on the skin long after bathing, suiting travelers who seek quiet recovery in the hills.

The Shika no Yu source of Shikabe Onsen is said to have been discovered in the Kanbun era, when Ito Gengoro, who came from Tsugaru to harvest kelp, spotted a deer healing its wounds in the water. Once welling up naturally on the beach, this source still gushes at 77.5°C from beneath the fishing port. Its soft water, carrying a faint saltiness and a hint of the sea, wraps the skin and warms the body to the core, suiting travelers who wish to unwind slowly by Uchiura Bay.

Hakone Yumoto Onsen's history is said to date back to the Nara period, making it Hakone's oldest hot spring village. [2, 4] The Hakone no Yu Kamon source is a private spring drilled in this historic land. This sodium/calcium-chloride/sulfate spring follows in the tradition of famous waters once presented to the Shogun's family during the Edo period. [10] Its waters gently envelop the skin, providing a characteristic warmth that lingers long after bathing. It is recommended for those seeking to release mind and body in historic, nature-rich Hakone.

Local lore says this spring was found in 1972 after a divine revelation, a story preserved in its name. Pumped from deep beneath a hillside facing Mt. Fuji and the Kofu Basin, the sodium chloride water is mildly alkaline and smooth, with a faint brown tint and a hint of sulfur, combining lasting warmth with a gentle feel on the skin.

The New Heartopia Onsen, located in Nagashima-cho, Kuwana City, Mie Prefecture, an area famous for Nagashima Resort, is sourced from deep underground through drilling and pump-lifting. Its soft, saline waters create a delicate veil on the skin, gently warming the body from its core. The restorative warmth lingers long after bathing, offering deep relaxation for both mind and body. This spring provides a soothing embrace for those seeking profound tranquility after a day of enjoyment in this vibrant leisure destination.

Tsuta Onsen in southern Hakkoda has hosted bathers since the Heian period, when simple bathhouses already stood here. The Tsuta Onsen Shinyu source bubbles up directly beneath the baths, seeping through gaps in beechwood floorboards without ever touching the air. Its blend of sulfate and bicarbonate soothes the skin and lingers long after bathing, suiting travelers who pair a brief, hot soak with autumn walks around nearby Tsuta Pond.

Kinosaki Onsen's centrally managed mixed spring gathers water from several wells into a large storage tank, where its temperature is steadied before it flows through a looped pipe beneath the streets to the town's public bathhouses and inns. Managed as a shared resource by the Yushima property ward of Kinosaki, this faintly salty water wraps the body in warmth that lingers long after bathing, suiting travellers who stroll from bath to bath in yukata.

Nestled in the scenic town of Matsuyama, this spring has long been cherished for relieving traveler fatigue, boasting robust eagle-like properties. The hypertonic chloride waters envelop the skin, smoothly expelling excess fluids and metabolic waste. The lightness after bathing and deep-penetrating warmth soothe the mind and body, freeing you from daily stress. Ideal for those with chronic stiffness or cold extremities, and perfect for weekend rejuvenation.

The Ajiro Onsen Hiratsuru Jika Gensen traces back to the first springs tapped at Ajiro in 1938 and is now pumped from deep underground. True to its seaside setting, chloride makes up over 90 percent of the anions at 4421 mg per kilogram, while calcium slightly outweighs sodium among the cations. Nearly colorless, faintly salty and bitter, it is a robust coastal water.

The Mandaiko source, originating from traces of past mining development, is deeply intertwined with Kusatsu Onsen's unique yumomi culture and its long history of toji (therapeutic bathing). Its highly acidic waters, among Japan's most potent, deliver a distinctive tingling sensation, awakening both mind and body and offering a sense of rejuvenation. The high-temperature blessings penetrate deep into the core, leaving you with a surprisingly light and refreshed feeling after your bath. We invite those seeking a genuine toji experience, a true escape from daily life to restore their mind and body, to discover the profound power of this spring.

Originating from the fumaroles of Owakudani, born from the eruption of Hakone volcano approximately 3,000 years ago, this artificially developed hot spring began to be supplied to Sengokuhara and Gora by Hakone Onsen Kyokyu Co., Ltd. in Showa 5 (1930). Its renowned milky white waters, blended with naturally gushing spring water, offer a pleasant sensation that tightens the skin and a powerful restorative warmth that penetrates deep into the body's core. After bathing, you'll feel surprisingly refreshed and light. It's a perfect companion when you seek to feel the Earth's energy and achieve deep relaxation and rejuvenation for your mind and body.

Kintaro Onsen gushes in Tenjinno, Uozu, close to Kurobe-Unazukionsen Station on the Hokuriku Shinkansen, where the edge of an alluvial fan looks up to the Tateyama range. The Kintaro Onsen source unites the qualities of a chloride spring and a sulfur spring: a dense, hypertonic water holding 4790.0 mg/kg of sodium and 1401.0 mg/kg of calcium, with thiosulfate and free hydrogen sulfide lending a sulfur scent. White and grey mineral flakes drift through the water, suiting bathers who want a hot, deeply warming soak and lovers of both salt and sulfur.

Discovered in 1992, Kumihama Onsen, drilled from 1500m underground, emerges in the scenic Kumihama Bay area of northern Kyoto Prefecture, facing the Sea of Japan. Its colorless, transparent, and mild waters are renowned for a gentle, skin-enveloping veil of salt. This unique quality delivers restorative warmth deep into the body's core, ensuring a lasting sense of comfort long after you leave the bath. It's an ideal retreat for those seeking deep relaxation and a profound escape from daily life amidst stunning rias coastlines.

Tokachigawa Onsen is famed for its "moor" water, which rises through layers of ancient plant deposits and was named a Hokkaido Heritage in 2004. This source blends three wells at the town's distribution station and is piped widely to inns along the river. Its faint amber water feels soft thanks to humic matter and bicarbonate, leaving skin moist, while the chloride content holds the warmth, a spring for those who want to warm up deeply under the clear skies of the Tokachi Plain.

Shima Onsen is said to take its name from healing "forty thousand ailments," and this water blends two naturally flowing sources from its Yamaguchi district in a mixing tank. Sodium (about 59 percent) and calcium (about 38 percent) lead the cations, while chloride (64 percent) and sulfate (30 percent) dominate the anions. It pairs the warmth of salt with the moist softness of sulfate, clear and easy-going at a gentle 1.42 g/kg, a quietly embracing water beside the Shima River gorge.

This private source gushes in the Kitahama district, part of Japan's premier onsen resort, Beppu, overlooking the bay. Located in an area that has long flourished as an entertainment district, this spring has soothed countless travelers. Combining the qualities of a bicarbonate and a chloride spring, its waters gently exfoliate the skin while a veil of salt locks in moisture. After bathing, you can enjoy a unique texture that is both silky and deeply hydrated. It is a renowned spring perfect for releasing mind and body while feeling the Beppu sea breeze.

Ikaho is an ancient spa praised in the Man'yoshu poetry anthology. In the Warring States era its stone-step street was laid out as a healing retreat for soldiers wounded at Nagashino, and the koma-guchi system that divides the spring water among the inns survives today. Kogane-no-yu rises clear, but its iron oxidizes in the air and tints the water tea-brown, as its golden name suggests. This neutral water rich in sulfate and bicarbonate warms the body to the core and has long been called a spring for fertility. It is a bath that carries Ikaho's history itself.

Shirahatage Genzen, located in Kusatsu Onsen and adjacent to Yubatake (Kusatsu's central hot-water field), is said to have been discovered by Minamoto no Yoritomo. Historically, it served as the stage for 'Jikan-yu' (timed bathing), supporting balneotherapy culture, and is truly considered the soul of Kusatsu. Its distinctive aroma and powerful waters, which feel as though they firm the skin, seem to awaken the mind and body from within. Surrendering to its embrace offers a pure moment to shed daily clamor and rediscover one's true self. This spring is a sanctuary for those seeking a fresh start and rejuvenation.

Rising at Kinoe on Osakikamijima, an island reached only by ferry, this spring once served a public lodge loved by islanders and sea travelers. Saltier than seawater and rich in calcium with a trace of radon, it is a powerful water for those who want to warm themselves slowly while gazing over the scattered islands.

Named after a peak resembling Switzerland's Weisshorn, this spring in the hills of Kyowa was discovered in 1968 by a borehole drilled to explore metal ore deposits. As the flow declined, a 731 m No. 2 well was drilled in 1975 and an 848 m No. 3 well in 1979, and the two are now blended. The alkaline chloride-sulfate water leaves skin feeling smooth, suiting drivers on the national highway who want to soak away a long journey.

The Mandaiko source, originating from traces of past mining development, is deeply intertwined with Kusatsu Onsen's unique yumomi culture and its long history of toji (therapeutic bathing). Its highly acidic waters, among Japan's most potent, deliver a distinctive tingling sensation, awakening both mind and body and offering a sense of rejuvenation. The high-temperature blessings penetrate deep into the core, leaving you with a surprisingly light and refreshed feeling after your bath. We invite those seeking a genuine toji experience, a true escape from daily life to restore their mind and body, to discover the profound power of this spring.