Watch the sunlight bouncing off the water as it tumbles over Todoroki-No-Taki Falls. Keep an eye out for any rainbows that form in the mist.
You'll soon find out why this Ureshino cascade of water is visited by many travelers. If you're searching for more to explore, Marchen Mura, Hizen Yumekaido, and Ureshino Onsen Koshu-yokujo-shiboruto Hot Spring are in the area too. They won't take you very long to reach from Todoroki-No-Taki Falls.