ホテル星羅四万十
Onsen hotel above the Shimanto River, with stargazing nights
Weekends and public holidays add a midday bathing session from 11:00 to 14:00, on top of the regular morning and evening hours.
Day bathing costs 800 yen for adults and 400 yen for children; children age three and under bathe free. A face towel is sold and a large towel can be rented, both for an extra fee.
Uses natural hot spring water
Enclosed indoor bathing area
Sauna room of any kind
The men's bath has a dry sauna and the women's bath has a mist steam sauna.
Shared bathing area for all genders
Welcomes children and families
A restaurant or dining room open to visitors, not only meals for overnight guests
Shower, wash stations, soap and shampoo provided
Towels to rent or borrow at the desk
Face towels are sold and bath towels are rented, both for an extra fee.
Hotel Seira Shimanto is a small, plain hotel on a hill above the Shimanto River in western Kochi, with fourteen rooms and its own hot-spring baths. The women's bath is finished in black marble and the men's in marble, and both look out over the river below. The men's side has a dry sauna and the women's a mist sauna running at full humidity. Day visitors can use the baths too, and the restaurant serves ayu and freshwater shrimp caught in the Shimanto when booked ahead. The hotel is known among guests for stargazing nights: on clear evenings there's a telescope session, and the sky here is dark enough to watch from the building itself even without joining in.
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Last updated September 29, 2026