Yamazakura Kamikochi Onsen

Yamazakura Kamikochi Onsen near Matsumoto, Nagano prefecture, draws bicarbonate-rich thermal waters in a region whose landmark is the Kamikochi valley — Japan's most celebrated mountain landscape, a glacier-carved paradise at 1,500 meters surrounded by the 3,000-meter peaks of the Northern Japanese Alps (Kita Alps) where only pedestrian access is permitted, creating an alpine wilderness whose integrity has been protected since the 1930s. The bicarbonate thermal springs in the Matsumoto-Azumino zone complement the Kamikochi hiking culture, the Hotaka volcanic summit glaciers, and the Matsumoto Castle — one of Japan's five remaining original tenshu keep castles, with black exterior walls earning its nickname 'Crow Castle' — in a highland wellness and cultural circuit of exceptional coherence. The traditional craft culture of the Azumino region — washi paper making, soba noodle handcrafting, and the fine woodwork of Matsumoto furniture — gives the thermal area a living traditional crafts dimension alongside the mountain thermal bathing.