Hokkaido Shiraoi Town

KAI Poroto

A hot spring retreat where you can enjoy spectacular views of Lake Poroto and flowing straight-from-the-source moss bath water

Reserved onsen available
Natural Hot Spring
Free-flow from source

About KAI Poroto

"KAI Poroto" is a hot spring inn on the shores of Lake Poroto in Shiraoi, Hokkaido. Its defining feature is that every room offers a view of the lake, and the architectural design inspired by Ainu culture is evident throughout. In the large public bath, you can enjoy continuously flowing, straight-from-the-source moss bath water, rare worldwide, rich in plant-derived organic matter. In the open-air bath of the bathhouse with its distinctive pointed roof, you can soak while becoming one with the spectacular seasonal views of the lake, and in the dome-shaped indoor bath, you can leisurely enjoy the tea-brown water in a mysterious cave-like space. Seasonal kaiseki cuisine made with Hokkaido's abundant seafood, along with experiences that let you connect with the Ainu view of nature, await you in a stay that can be experienced only here.

Hot SpringONSEN

Free-flow from source

Large public bath

A large public bath equipped with a bathhouse that incorporates architectural features of Ainu culture. Rich in plant-derived organic matter, it offers continuously flowing tea-brown moss bath water, rare worldwide, straight from the source. From the open-air bath with its distinctive pointed roof, you can enjoy an exceptional soak that feels united with the spectacular seasonal views of Lake Poroto. It also features a mysterious dome-shaped indoor bath, where you can slowly savor the gift of the hot spring while feeling the soft natural light streaming in through the round opening in the ceiling.

Facility Information

Address: 〒059-0902 1-2-1018-94 Wakakusacho, Shiraoi, Shiraoi District, Hokkaido
Business Hours: Monday14:30〜01:00/05:00〜10:00
Tuesday14:30〜01:00/05:00〜10:00
Wednesday14:30〜01:00/05:00〜10:00
Thursday14:30〜01:00/05:00〜10:00
Friday14:30〜01:00/05:00〜10:00
Saturday14:30〜01:00/05:00〜10:00
Sunday14:30〜01:00/05:00〜10:00
Holiday14:30〜01:00/05:00〜10:00
Open Year-Round
Closed Days: Open Year-Round
Gender Access: Gender Separated
Tattoos in the Communal Bath: No tattoo-specific restriction
If the facility determines that another guest may feel intimidated, you may be refused entry to the large public bath.
Official Website: View official site

Access

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