Shumarinai Prefectural Natural Park

Japan's coldest region, a park around Lake Shumarinai in Hokkaido's north. Here, there are illusive fish like the Sakhalin taimen, masu salmon, and Hypomesus nipponensis. Also, you can observe the islands that float in the lake for 35 minutes by sightseeing pleasure boat, it's a park that will make you one with nature.