The stratovolcano of Mount Usu lies on the southern rim of the caldera.

"[3] The 2008 G8 Summit was held at Lake Tōya and The Windsor Hotel Toya Resort & Spa.

Several onsen managed by the town of Toyako offer a view of the lake.

Uniquely, large vending machines near the onsen offer spring water that can be taken to be used at home.

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