Kose Onsen Hotel
小瀬温泉ホテル
Does Kose Onsen Hotel allow tattoos? In a private bath
Two springs of its own, one at 52°C and one at 45°C, neither heated nor recirculated by the operator’s account, running into two lockable open-air baths and into the bathtub in every room.
Kose Onsen Hotel publishes no tattoo rule, and a staying guest does not need one. There are two open-air baths you lock from inside, free and taken whenever one is empty, and the operator says every guest room’s bathtub is plumbed with the hot spring. The indoor bath is shared, and nothing is written about tattoos there.
Where it is
Tokyo STN
Hokuriku Shinkansen 1 h 06
Karuizawa STN
Hotel location
JR Tokyo Wide Pass Covers the Hokuriku Shinkansen from Tokyo as far as Karuizawa and Sakudaira. The buses to hotels outside the center are paid separately. Sold on Klook.
What happens when you arrive
Skip the shared baths and reserve the private one the way this page describes. Once the door is closed, the bath is yours.
How we know
Confirmed from official site, bath structure rather than a tattoo policy (the hotel’s onsen page for the private open-air baths, its room page for the hot spring in every room bath)
Read on: koseonsen.com/onsen.html
Best for: Free-flowing hot spring water in a locked open-air bath and again in your own room’s tub
Each private open-air bath holds up to four. Free, no booking, as often as you like: 13:00–23:00 and 7:00–9:00, about 40 minutes a turn, lock the changing room door behind you. The shared indoor bath runs 13:00 to 10:00 the next morning and is drained and cleaned from 10:00 to 13:00. The inn owns two sources, at 52°C and 45°C, sodium bicarbonate, and says it neither recirculates, filters nor heats the water; half the water in the tubs turns over every hour. Dinner is what the hotel calls French cooking eaten with chopsticks. Maintenance closure dates are posted on its news list.
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