Overview
Lake Kussharo is a caldera lake in Akan National Park, eastern Hokkaidō, Japan. As with many geographic names in Hokkaidō, the name derives from the Ainu language.
Description
Lake Kussharo, set at the center of the Kussharo Caldera, is the largest caldera lake in Japan. It is a hot spot for geothermal activity and home to a number of hot springs, including Sunayu Onsen and Oyakotsu Jigoku. This beautiful lake attracts 400 to 500 whooper swans every year. Bihoro Pass Observatory, meanwhile, offers panoramic views of Lake Kussharo, as well as local treats such as bamboo-grass ice cream. It is the largest caldera lake in Japan in terms of surface area and sixth largest lake in Japan.