Bobo12345 / CC BY-SA 3.0

The active crater of Naka-dake, one of Aso's five central cones, is one of the few volcanic craters on Earth that the public can approach on foot or by shuttle bus to peer directly into an emerald, steaming acid lake. Gas levels are monitored continuously; the rim includes blast shelters, a lookout terrace, and a small shrine.

Best season

Year-round

Crowd level

Hidden gem

Rating

4.7· 154 reviews

Nearest station

JR Aso Station (approx 30 min by car, then shuttle bus to the crater rim)

More in Kyushu

Continue exploring

Bungo-Mori Roundhouse

Oita

Shiratani Unsuikyo

Kagoshima

Kamo Giant Camphor

Kagoshima