The Tojinbo Cliffs (東尋坊) are a series of cliffs in Sakai, Fukui that are about a kilometer long and about 25 meters high. The cliffs are made from columnar jointing of pyroxene andesite. (Pyroxene andesite is a type of rock, and a columnar joint is a column-shaped crack in stone.) The columnar joints in the Tojinbo Cliffs are among the largest in the world. The only places that have similarly large ones are Mount Kumgang in Korea and the western coast of Norway.