Nestled in the volcanic wilderness of Akan-Mashu National Park, Lake Akan captivates visitors with its tranquil waters and forested mountain scenery. The lake is uniquely renowned as the habitat of marimo, a rare spherical algae that can grow over centuries into the size of soccer balls. Designated as a National Special Natural Monument, these fascinating green spheres can be viewed in exhibitions and on boat tours around the water. Beyond its ecological wonders, the lakeside area offers rejuvenating hot spring resorts and rich encounters with indigenous Ainu culture.
- Crater Lake
- Lakes
- National Parks
- Nature
- Scenic
- Wildlife
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