An alpine tarn at just over 2,000 m that holds the Ushiro-Tateyama ridge as a mirror image on a still morning, and the photograph Hakuba is known for. Be clear on the effort: the Alpen Line lifts take you to 1,830 m for 3,400 yen return, and from there it is 50 to 70 minutes on rocky, exposed ridge path. Snow lies here into early summer, so July to October is the reliable window.