Bring a camera to capture the flowing waters of Nachi-no-taki. If it's raging, you may be able to feel the mist on your skin.
You'll soon discover why this Nachikatsuura cascade of water is visited by many travelers. If you're searching for other things to see here, Nachi Waterfall, Kumano Nachi Taisha Shrine, and Seigantoji Temple are in this area too. They won't take long to get to from Nachi-no-taki.