River boating down the Arakawa River in a Japanese-style boat manned by a skilled Sento-san (boatman) is one of the best ways to truly experience Japanese nature. You get to watch the mountainous scenery while the boat hits occasional rapids – it’s almost like rafting.

In the winter, slow and calm rapids offer you a relaxing experience. The boats in the winter are equipped with kotatsu, which keep you warm while you enjoy the famous Iwadatami.