Lake Shikaribetsu, Natural lake in Tokachi Subprefecture, Japan
Lake Shikaribetsu sits at 810 meters elevation in the Daisetsuzan mountains, surrounded by peaks including Mount Hakuunzan and Mount Tenbouzan. The water is exceptionally clear, and the lake stretches through a narrow valley with dense forests covering the surrounding slopes.
The lake formed approximately 30,000 years ago when volcanic activity from Mount Higashinupkausi-nupuri created a natural dam in the Yanbetsu River. This geological event shaped the mountain valley into one of the region's oldest alpine lake basins.
The name comes from the Ainu language and means 'river that turns itself', reflecting traditional connections to the indigenous people of Hokkaido who lived in these mountains and understood the water's patterns.
You can reach the lake by bus from JR Obihiro Station in about 100 minutes, or drive around 60 minutes from Tokachi Shimizu Interchange. The best time to visit is from June through September when mountain roads are open and hiking trails are accessible.
In winter, locals build Shikaribetsu Lake Kotan on the frozen surface, a temporary village with structures made entirely of ice. This ice sculpture settlement appears only for a few months and offers visitors the rare experience of sleeping on a frozen lake.
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