Asari River Hot Spring is a hot spring town located along the Asari River at the northern foot of the Asari River. Otaru City successfully developed hot springs here in 1954. Since then, the hot spring town has gradually formed. There are now about 10 hot spring hotels and 2 hot spring facilities that can be commuted on the same day. There are ski slopes and golf courses nearby, and it is popular as "Otaru's backyard".