Hotel Grand Tencoo
ホテルグランド天空
Small onsen hotel above Lake Tazawa with an open-air bath
Lodging
Day Use
NoDay-use bathing is suspended until further notice. Check with the hotel whether it has resumed.
Bathing & Water
Natural onsen water
Uses natural hot spring water
Outdoor BathYes
Open-air outdoor bath
Indoor BathYes
Enclosed indoor bathing area
Views
LakeAbout
A small hotel of 19 rooms in the Tazawako Kogen onsen area (田沢湖高原温泉郷), with natural onsen water on the ground floor. There is an open-air bath (rotenburo), and a reviewer notes that the indoor bath runs hotter. Every room looks out over Lake Tazawa. The hotel has paused day-use bathing (higaeri nyuyoku, 日帰り入浴) until further notice, so the baths are for overnight guests.
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Last updated October 13, 2026