Katanuma Lake 潟沼

Lake · Day trip from Sendai

Katanuma is an acidic caldera lake located four kilometers from Naruko Onsen Station. The lake's color changes daily, appearing sky blue, dark blue, or emerald green. Visitors can enjoy the scenery from a boat or walk along a 1.3-kilometer path around the lake.

Source: welcome-naruko.jp ↗, read 2026-09-11

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