Hotel Kinomezaka
ほてる木の芽坂
Rooftop open-air bath at a hotel in Muikamachi Onsen
Day Use
YesDay use runs on different schedules for weekdays and for weekends/holidays (see the grid). The rooftop open-air bath closes at 21:00 in the snowy season. Sauna runs 15:00 to 21:00. Day use may be refused when the hotel is busy with overnight guests.
Children of elementary school age and under are 500 yen. Towel set 500 yen. Bathing tax of 120 yen per adult is charged separately.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Sauna room of any kind
Cold water plunge bath, typically used after sauna
Bathing Arrangements
Shared bathing area for all genders
Policies & Services
Shower, wash stations, soap and shampoo provided
Views
MountainsHighlights
Lukewarm BathAbout
Hotel Kinomezaka sits in Muikamachi Onsen, with the spring source out among the rice paddies in front of it. The big indoor bath is kept pleasantly lukewarm, the kind of nuruyu you can stay in for a long time. Upstairs is a rooftop open-air bath called Omatsu-no-yu (お松の湯), and in summer the view is green rice fields and the Echigo Sanzan mountains. There are also a sauna and a cold plunge, and separate baths for men and women, no mixed bathing. Day-use bathing (higaeri nyuyoku, 日帰り入浴) is available, though it can be refused when the hotel is full of overnight guests.
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Last updated October 13, 2026