Hakone Tenzan Tokinoyu (天山湯治郷)
하코네 텐잔 온천 (天山湯治郷)
7 source springs in Hakone, 500,000 liters/day free-flowing open-air onsen
About this place
NotesDay-use onsen in Hakone Yumoto. 7 on-site source springs produce ~500,000 liters/day, distributed directly to baths without storage or dilution. Men: 1 indoor + 4 outdoor + kamaburo (steam sauna). Women: 1 indoor + 4 outdoor + 2 saunas (regular + mist). Spring #74 is Hakone's only drinkable spring (pH 9.3 alkaline). Restaurants Yamaboshi and Rakuten on-site. Hashigo-yu ticket (weekday only ¥300-550) for adjacent Ikkyu. 140 parking spaces. 10 min shuttle from Hakone-Yumoto Station.
Practical notes
10 min by bus from Yumoto Station (¥200). ¥100 off with the Hakone Free Pass. Entire facility is no-smoking and no-phones.
Compiled from publicly available information and visitor reports. The rating shown is an editorial summary of the same, and does not mean we have visited every place in person. Prices and hours may change — please confirm with the venue before visiting.
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EssentialsDiscounted tickets available
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Info updated: 2026-08
Details may differ from actual conditions.
What stands out
- +Perfect forest open-air atmosphere
- +Pools with valley stream sounds
- +90 minutes from Tokyo
- +Variety of pool types
Facility Details
7 free-flowing springs. 1 indoor + 4 outdoor each. 2 restaurants. 140 parking.
Sauna
3Hot spring steam sauna
Baths
2Facility details are verified and updated regularly, but may differ from actual conditions. Please confirm with the venue before visiting.
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Cheaper than walk-in · Mobile voucher