The Lake Suite Ko No Sumika
ザ・レイクスイート湖の栖ザ・レイクスイートこの栖
Day Use
NoClosed from after checkout on Tue Nov 10, 2026 through Thu Nov 12 / reopening from check-in on Fri Nov 13.
Bathing & Water
Uses natural hot spring water
Open-air outdoor bath
Enclosed indoor bathing area
Dry heat sauna room
Cold water plunge bath, typically used after sauna
Capabilities
Private onsen bath in guest rooms, for overnight guests only
Shared bathing area for all genders
Policies & Services
Restaurant or dining open to visitors (not just hotel meal plans)
Shower, wash stations, soap and shampoo provided
Relaxation space for after bathing
Views
LakeHighlights
Jet BathAbout
Every room at Ko No Sumika (湖の栖) comes with its own private open-air onsen on the terrace, fed by the natural Toyako Onsen spring. The main public bath on the top floor takes things further: the outdoor rotenburo (露天風呂) is built in three descending tiers facing the lake, cantilevered so the water appears to merge with Lake Toya below. The same floor has a dry sauna with a full lake view, a cold plunge that draws on lake water, a jacuzzi, and an indoor bath. Day use is not available.
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Last updated June 25, 2026