Chubu · Aichi · Toyohashi
Hotel Sea Palace Resort
Sea Palace Rainbow Pool (summer) with two waterslides, wave/current, and toddler pools.
⛰️ Chubu · Nagano
白樺リゾート 池の平ホテル
Indoor heated pool with a 4.2 m high / 40 m long waterslide. Year-round (maintenance periods apply).
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Notes & caveats
Nagano · Tateshina, Kitasaku District
Meal tags: dinner / breakfast
Sources
Hours and fees change. Always confirm on the official site. We do not invent prices or star ratings.
A. Indoor heated pool with a 4.2 m high / 40 m long waterslide. Year-round (maintenance periods apply).
A. There is year-round or indoor equipment (excluding maintenance/closures). Always confirm on the official site.
A. Solo riding banned under age 6 or under 120 cm. Two-person lap riding may be allowed per official FAQ.
A. We do not list prices here (they change often). Check Booking.com, Agoda, or the hotel’s official site for live rates.
Chubu · Aichi · Toyohashi
Sea Palace Rainbow Pool (summer) with two waterslides, wave/current, and toddler pools.
Chubu · Niigata · Myoko
Joetsu Kokusai Playland Water Park with water bobsleds (150 m / 100 m), Wonderful Slider, Balloon Slider, and more.
Chubu · Mie · Kuwana
Nagashima Resort “Jumbo Saltwater Pool” with many large waterslides (e.g. Mega Abyss). Guest pool tickets available. Indoor kids spa area too.
Affiliate / ad links. We may earn a commission if you book. Until affiliate IDs are set, links open Booking / Agoda hotel search for Japan.
Also on Japanese OTAs