Kikuchi Gorge
Spreading across the northwestern side of the Aso Outer Rim, this expansive forest area covers roughly 1,193 hectares. Sitting at an elevation of 500-800 meters, it preserves the untouched beauty of the crystal-clear spring water flowing from the outer rim of Aso and the abundant surrounding nature.
There are lots of waterfalls, rapids, and deep pools inside. The scenery is really diverse—it's not just a simple walk along a stream and that's it.