The caldera lake held in the three ridges of Mt. Katta, Mt. Kumano, and Mt. Goshiki in the Zao mountain range got its name because of its shape like a kettle (kama, in Japanese).
The circumference of the lake is about 1,080 meters with a diameter of about 325 meters. The emerald green surface of the lake is also called a five-color marsh (goshiki-numa, in Japanese) because it changes color depending on the weather and how the sunlight hits the water.
- Late April to early November
- Early November to late April
- Take the Miyako bus bound for “Zao-Katta Sancho (mountaintop)” from Togatta hot springs. Get off at the last stop (Buses run on Saturdays, Sundays, and holidays only).
60 minutes by car from Murata IC of the Tohoku Expressway.
- 0224-33-2215 (Agriculture, Forestry, and Tourism Division, Zao Town)
- Zao Town, Miyagi Prefecture