Lake Man, Lake in Japan
Lake Man is a caldera lake located in Akan National Park, Hokkaido, Japan.
The lake was formed over 6,000 years ago by volcanic activity.
It's known for its clear blue waters and the Ainu Kotan village nearby, which showcases the culture of the indigenous Ainu people.
Visitors can enjoy activities such as canoeing, fishing, and hiking around the lake.
Lake Man is one of the few places in Japan where marimo, a rare type of algae, can be found.
Location: Okinawa Prefecture
Source: Wikimedia