From the foot of the sulfur mountain to the Okhotsk sea, the river has hot springs flowing in about 3 kilometers long, and the river as a whole is like a hot spring flowing in the Okhotsk. It forms a rare waterfall pool in Japan, so it is famous for enjoying natural open-air hot springs. And the waterfall of the gods on the downstream coast, can only be seen from the sea, and the landscape of the waterfall is very amazing.