🗼 Kanto · Kanagawa

Hakone Hotel Kowakien

Name: Hakone Hotel Kowakien
Address: Hakone, Kanagawa, JP

箱根ホテル小涌園

Guests get free Yunessun access including indoor Bosappy River lazy river (swimsuit spa) plus kids lagoon; Rocky Splash waterslides also on site.

IndoorYear-round orientedAd

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Lazy river & stay facts

Indoor: Yes
Outdoor: No
Year-round: Year-round oriented
Age / limits: Bosappy River is family-friendly; Rocky Splash has height limits (e.g. 105 cm+). Confirm current Yunessun rules.
Swim diaper OK: unknown

Notes & caveats

Lazy river is at adjacent Yunessun (short walk), included for hotel guests—verify current free-pass terms.
Yunessun is swimsuit spa, not a nude onsen for this zone.

Kanagawa · Hakone

Meal tags: dinner / breakfast

Sources

Hours and fees change. Always confirm on the official site. We do not invent prices or star ratings.

A. Guests get free Yunessun access including indoor Bosappy River lazy river (swimsuit spa) plus kids lagoon; Rocky Splash waterslides also on site.

A. There is year-round or indoor equipment (excluding maintenance/closures). Always confirm on the official site.

A. Bosappy River is family-friendly; Rocky Splash has height limits (e.g. 105 cm+). Confirm current Yunessun rules.

A. We do not list prices here (they change often). Check Booking.com, Agoda, or the hotel’s official site for live rates.