Hokkaido, the northernmost of Japan’s main islands, is known for its volcanoes, natural hot springs (onsen) and ski areas. Rugged Daisetsuzan National Park is home to steaming, volcanic Mount Asahi. Shikotsu-Toya National Park contains caldera lakes, geothermal springs and a Mount Fuji look-alike, Mount Yotei. Popular ski resorts include Rusutsu, Furano and Niseko.