For a day by the water with a difference, make your way to the bubbling pools of Ashiyu Takinoyu. This place is renowned for its mineral-rich waters.
This naturally heated water source is in Nachikatsuura, a place that has so much going for it! Nachi Waterfall, Kumano Nachi Taisha Shrine, and Seigantoji Temple are other popular sightseeing options not far away when you've finished up at Ashiyu Takinoyu.