The major “onsen” or hot spring resorts in the Kushiro region are located within the Akan National Park. Lake Akan, Lake, Kussharo, and Lake Mashu, the three large caldera lakes in this area, are not only magnificent natural sites, but are also home to numerous hot springs. Each site was formed from a different volcano, giving rise to hot springs of varying mineral content.

Located at the foot of Io-zan (sulfur mountain), Kawayu Onsen in Teshikagawa Town is a volcanic hot spring with a unique mineral content. A river of hot spring water flows through the onsen district, permeating the entire area with the characteristic smell of sulfur.

Opened in 1885, Mashu Onsen is the oldest hot spring district in Eastern Hokkaido. The spring water here is clear and rich in sodium chloride. There are several “kakenagashi” or continuous flow-type hot spring resorts located along the Kushiro River that you can enjoy.

The hot spring resorts around Lake Kussharo have varying mineral content. Enjoy a view of the great lake or the starry night sky while relaxing in the hot springs here.

There are many hot springs in these towns, each with their own unique character, offering you a relaxing bath time.