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Hotel Seira Shimanto

ホテル星羅四万十

Onsen hotel above the Shimanto River, with stargazing nights

Lodging
Shikoku·Kochi

Day Use

Yes
Mon07:00–09:00, 16:00–22:00
Tue07:00–09:00, 16:00–22:00
Wed07:00–09:00, 16:00–22:00
Thu07:00–09:00, 16:00–22:00
Fri07:00–09:00, 16:00–22:00
Sat07:00–09:00, 11:00–14:00, 16:00–22:00
Sun07:00–09:00, 11:00–14:00, 16:00–22:00
Public holidays07:00–09:00, 11:00–14:00, 16:00–22:00

Weekends and public holidays add a midday bathing session from 11:00 to 14:00, on top of the regular morning and evening hours.

¥800

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.

Bathing & Water

Natural onsen water

Uses natural hot spring water

Indoor BathYes

Enclosed indoor bathing area

SaunaYes

Sauna room of any kind

The men's bath has a dry sauna and the women's bath has a mist steam sauna.

Bathing Arrangements

Mixed BathingNo

Shared bathing area for all genders

Policies & Services

KidsYes

Welcomes children and families

DiningYes

A restaurant or dining room open to visitors, not only meals for overnight guests

WashingYes

Shower, wash stations, soap and shampoo provided

TowelsYes

Towels to rent or borrow at the desk

Face towels are sold and bath towels are rented, both for an extra fee.

Views

River

Highlights

Steam Sauna

About

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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Onsen Oni

Last updated September 29, 2026