Hotel Masyu
ホテル摩周
A small hotel near Lake Mashu with a continuously flowing chloride spring
Lodging
Day Use
Yes07:30–21:00
¥500
Bathing & Water
Natural onsen water
Uses natural hot spring water
Indoor BathYes
Enclosed indoor bathing area
Bathing Arrangements
Mixed BathingNo
Shared bathing area for all genders
Policies & Services
WashingYes
Shower, wash stations, soap and shampoo provided
TowelsYes
Towels to rent or borrow at the desk
ParkingYes
On-site or nearby parking available
About
Hotel Masyu is a small, older hotel near Lake Mashu with one indoor bath each for men and women. The water is a colorless, mild chloride spring, and the baths run on a continuous flow of it rather than recirculating. Day-use bathing is available. Reviews describe the building as dated but the spring itself as genuinely good.
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Last updated September 29, 2026