Yuasa Onsen is a small public spring facility in the historic town of Yuasa, Wakayama, known as the birthplace of soy sauce, with clear sodium bicarbonate water and a walkable old townscape nearby.

Totsukawa Onsen is a remote river valley spring in the deep mountains of southern Nara, one of Japan's most isolated onsen areas, with clear water, small inn clusters, and old-growth forest scenery.

Nachikatsuura Onsen is a Pacific coast spring town in Wakayama with large tuna-fishing port ryokan, ocean-facing baths, and direct access to Nachi Falls and the Kumano Kodo pilgrimage routes.

Ureshino Onsen is a tea-producing spring town in Saga on Kyushu, known for strongly alkaline water that softens skin quickly, riverside ryokan, and a regional food culture centered on Ureshino tea.

Kawaguchiko Onsen is a lakeside spring resort on Lake Kawaguchi in Yamanashi, offering ryokan and hotel baths with direct views of Mount Fuji across the water on clear days.

Kinugawa Onsen is a popular river gorge spring resort in Tochigi near Nikko, with large hotel ryokan lining a basalt canyon, clear alkaline water, and direct limited express access from Tokyo.

Nyuto Onsenkyo is a group of seven secluded inn springs deep in the beech forests of Akita near Lake Tazawa, each with its own distinct spring type and a wild, unhurried mountain character.

Osorezan Onsen is a sacred volcanic spring at the crater lake of Mount Osore on the Shimokita Peninsula in Aomori, one of Japan's most spiritually significant landscapes, with sulfur vents, pale water, and a single inn.

Hanamaki Onsen is a well-developed spring resort area in Iwate with multiple inn districts, clear alkaline water, and a strong connection to the poet Kenji Miyazawa and the cultural heritage of the Tohoku region.

Iizaka Onsen is one of Tohoku's oldest spring towns in Fukushima city, with a public bathhouse district, clear sodium chloride water, and a direct tram connection from Fukushima Station.

Higashiyama Onsen is a historic gorge-side spring town on the edge of Aizuwakamatsu in Fukushima, with ryokan lining a narrow valley, clear alkaline water, and a literary and samurai heritage connection.

Nukabira Onsen is a small lakeside spring village in the Tokachi highlands of Hokkaido, set on the shore of Lake Nukabira with a quiet inn district, clear sodium bicarbonate water, and forest scenery.

Shikaribetsu Kotan is a seasonal ice village on a frozen Hokkaido lake each winter, with open-air hot spring baths cut into the ice shore and accommodation in dome-shaped snow huts.

Toyako Onsen is a lakeside spring resort in Hokkaido on the shore of Lake Toya, a caldera lake, with large hotel ryokan, volcanic island views, and seasonal nightly fireworks over the water.

Takachiho Onsen is a public bath facility in the mountain town of Takachiho, Miyazaki, with indoor and outdoor baths, open late into the evening, and convenient for visitors to the gorge.

Myoken Onsen is a quiet riverside spring hamlet in Kirishima, Kagoshima, with a small number of ryokan set along the Amori River, known for clear water and a forested gorge setting.

Kirishima Onsen is a highland volcanic spring area in Kagoshima set across multiple ryokan districts on the slopes of the Kirishima mountain range, with varied spring types and active volcanic scenery.

Kaike Onsen is a seafront spring resort in Yonago, Tottori, with salt-rich water, a sandy beach promenade, and ryokan facing the Sea of Japan and views toward Daisen volcano.

Yunomine Onsen is a UNESCO-listed hot spring hamlet deep in the Kumano mountains of Wakayama, with a small cooking spring, a public bath in a thatched hut, and over 1,800 years of documented history.

Shirahama Onsen is a coastal resort town in Wakayama with white sand beaches, open-air cliff baths, and sodium chloride spring water distributed across seafront ryokan and public bathhouses.

Yamashiro Onsen is one of four Kaga Onsen towns in Ishikawa, with a renovated central public bath, formal ryokan district, and clear alkaline water set in a town with a long craft and cultural history.

Wakura Onsen is a peninsula-tip spring resort on Nanao Bay in Ishikawa, with salt-rich water, large seafront ryokan, and a direct rail connection to the Noto Peninsula coast.

Kanbayashi Onsen is a quiet hillside spring town in Suzaka, Nagano, known for clear sodium bicarbonate water, a small public bath, and proximity to the Shiga Kogen highland area.

Asama Onsen is a historic spring town on the eastern edge of Matsumoto city, with alkaline clear water, a public bathhouse district, and a literary heritage tied to the Meiji and Taisho periods.

Yumoto Onsen is a small alpine spring village at 1,470 meters inside Nikko National Park, fed by a sulfur lake source and surrounded by highland marshes, lakes, and forest trails.

Naruko Onsen is a compact gorge-side spring town in Miyagi with five distinct spring types, a direct rail connection, and one of the most varied onsen water selections in the Tohoku region.

Tsuta Onsen is a single historic inn in Aomori's beech forest, beside three small lakes and old-growth woodland, with spring water drawn directly from beneath the building's bath floors.

Yagen Onsen is a remote valley spring in northern Aomori's Shimokita Peninsula, set along a river gorge with outdoor rotenburo and a small cluster of inns deep in beech forest.

Minakami Onsen is a river gorge spring town in northern Gunma with multiple inn districts, outdoor activity access, and a wide range of ryokan suited to both relaxation and adventure-focused stays.

Ibusuki Onsen is a coastal spring town in Kagoshima known for natural sand baths heated by geothermal water, set on a black sand beach at the southern tip of Kyushu.

Tamatsukuri Onsen is a refined riverside spring town in Shimane near Matsue, one of Japan's oldest recorded onsen, with large ryokan, a walkable promenade, and smooth alkaline water.

Misasa Onsen is a riverside hot spring town in Tottori known for radon-rich water, outdoor foot baths along the Misasa River, and a compact inn street walkable from the bus stop.

Bessho Onsen is Nagano's oldest hot spring town, compact and walkable, with public bathhouses, historic temples, and clear alkaline water across a small cluster of inns.

Kaga Onsen is a group of four historic spring towns in Ishikawa Prefecture, each with its own spring source and character, ranging from quiet inn villages to larger resort facilities.

Ginzan Onsen, Japan is a historic ryokan village in Obanazawa with gas-lit streets, a scenic river, and traditional onsen inns open year-round.

Shima Onsen is a quiet inn village deep in a Gunma gorge, fed by multiple spring sources and known for clear, high-quality water used across its small cluster of ryokan.

Ikaho Onsen is a historic resort town in Gunma built on a hillside, known for its stone staircase lined with inns and two distinct spring types.

Zao Onsen, Japan is a sulfuric hot spring village on Mount Zao with multiple public baths and dozens of ryokan within walking distance of Yamagata City.

Old Izu onsen town on the Katsura River with public bath Hakoyu, footbaths, and ryokan day baths, easy bus access and calm evening walks.

Day use Hakone bath complex with many outdoor rock baths in forest setting, easy bus access from Hakone Yumoto, with food and rest areas.

Seaside onsen city a short ride from Tokyo, with many day use baths and ryokan, plus an easy stroll vibe, best paired with a one night stay.

Historic Kobe mountain onsen with two famous waters, kin and gin, plus easy train access and many ryokan day baths in a tight walkable core.

Quiet mountain onsen in the Japanese Alps with famously milky mineral water at some baths, reached by winding road or bus, best for an overnight reset.

Hakodate onsen district 10 minutes from the airport, with many ryokan day baths, tram access, and a simple footbath stop by the station.

Classic river town onsen in Gifu with easy station access, several public baths and footbaths, and many ryokan day baths in a compact center by the Hida River.

Remote 750 m high sulfur onsen at the Annupuri and Iwaonupuri trailheads, reached by mountain road, with indoor baths and a big outdoor pool.

Ocean edge open air bath carved into coastal rock, famous for wave spray and sea views, simple facilities, paid entry, and slippery footing in wind.

Remote lamp lit onsen inn with four baths and no power in rooms, reached by reserved shuttle, best for a quiet overnight digital detox.

River valley onsen near Sapporo with many ryokan baths and easy day trips, best in autumn and winter when the Toyohira gorge scenery hits.

Volcanic highland onsen with steaming jigoku fields, sulfur scent, and ryokan day baths, best for a slow stay in cool mountain air.

Village onsen with 13 small public baths, best with an overnight stay, plus ski town energy in winter and strong local etiquette around shared bathing.

Walkable valley onsen town under Mt Yufu, with many ryokan day baths and a rustic public bath option, easy rail access near Lake Kinrin.

Historic onsen lane with nine small public baths for guests, best as an overnight stay, with quick access to the snow monkey area. cobblestone streets, no cars.

Mountain onsen town known for its bath hopping pass and quiet riverside rotenburo, best enjoyed with an overnight stay.

High elevation Hakkoda onsen with the famous large mixed bath, a snowy day trip from Aomori with a strong old school vibe.

Winter-only river rotenburo at Kawayu Onsen in Hongu, a giant dammed pool in the Ohtou River, swimsuit required, free to use, closes in high rain.

Streamside ryokan baths in Nyuto Onsenkyo with milky sulfur water and mixed-gender outdoor pools, plus day-use bathing, reached by bus from Tazawako.

Hilltop open-air onsen above Yamanashi City with two bath areas and sunrise-based opening, paid day-use with parking, for Mt. Fuji and basin views.

All-in-one indoor water park and onsen in Fukushima, with huge pools and a large bath complex, easy access from Yumoto Station, good for families.

Coastal sand-steam bath in Ibusuki, staff bury you in naturally heated sand, then rinse off and soak in the public bath, easy access by town transit.

Mountain ryokan in Shirahone Onsen with a famous milky outdoor bath, best as an overnight soak, adults-oriented policies, paid entry when available.

Tiny private UNESCO-listed bath hut in Yunomine Onsen, you take a numbered ticket, soak for a timed turn, then head back to the public desk, paid entry.

Forest hillside onsen with many open-air baths in Okuhida, easy from Hirayu bus terminal, ideal for trying multiple tubs in one paid visit, year-round.

Big modern onsen in Shinjuku’s Kabukicho, open 24 hours with multiple baths, saunas and lounges, plus towels and in-house wear included, paid entry varies.

National-park onsen in Nyuto’s beech forest, reachable by bus from Tazawako Station, with day-use indoor baths and a quiet outdoor rotenburo, limited hours.

Noboribetsu Onsen hot spring town by Hell Valley, with many day-use baths and hotel options. Easy access by bus, sulfur air, watch slippery paths.

Mountain Kusatsu Onsen centered on the Yubatake, with classic public baths and steam streets. Easy bus access, winter roads can be snowy, plan traction.

Walkable Kinosaki Onsen town with seven public bathhouses, yukata strolls, and easy train access from Kyoto or Osaka. Check tattoo rules per bath.

Jigokudani Monkey Park is a short forest walk to a hot spring pool where wild macaques soak. You watch, not bathe, so dress for snow and mud, too.

Onsen-rich Beppu, home of the eight Beppu Hatto areas, is built for bath-hopping by train or bus, with easy public baths, sand baths, and steam too.

Big Noboribetsu Onsen bath complex with five mineral spring types and many pools. Day trips possible, check closures and shuttle options on the site.

Arima's clear Ginsen bathhouse with sauna, open 9:00-21:00 (last entry 20:30). About a 10-minute walk from Arima Onsen Station. Good for a quick soak.

Swimsuit-on hot spring pools and a flowing pool at Hakone Kowakien Yunessun. Not fully barrier-free, expect stairs. Easy bus access from Hakone-Yumoto.

Classic Arima day-use bath for the rust-colored Kinsen waters. Walk 5 minutes from Arima Onsen Station, check latest hours online first before you go.

Retro bathhouse in Kinosaki Onsen with a kids' lukewarm tub. Open 7:00-23:00 (closed Mondays), 5 minutes on foot from Kinosaki Onsen Station in town.

Riverside onsen inn in Minakami with huge mixed outdoor baths, bathing tunics provided, bus from Minakami Station, winter roads. Bring traction in snow.

Rustic Nyuto Onsen ryokan with milky sulfur baths in the forest, reached by bus and short walk, day-use hours are limited. Mixed bath is traditional.

Large open-air bath in Kusatsu’s Sainokawara Park, about a 12-minute walk from Yubatake, forest views, seasonal hours, outdoor showers. bring coins.

Day-use onsen near Hakone-Yumoto with public baths and bookable private rooms, free shuttle, under-6s use private baths only. Wheelchair users welcome.

Classic Beppu bathhouse known for sand baths, a short walk from JR Beppu Station, simple facilities, bring your own towel and soap, expect queues.

Historic public bathhouse in Matsuyama’s Dogo district, walkable from trams, with multiple bathing courses and strict no-swimsuit rules, lockers.