Motsu Onsen Motosu Yamanashi

Motsu Onsen Motosu, near the shores of Lake Motosu in Yamanashi Prefecture at the western base of Mount Fuji, draws on bicarbonate thermal waters in a setting of exceptional natural beauty — the Fuji Five Lakes district, where volcanic geology sustains both the dramatic peak of Fuji (3,776 metres) and the geothermal springs that have made the surrounding area one of Japan's most popular onsen regions. Lake Motosu itself is famous throughout Japan as the source of the Mount Fuji image printed on the ¥1,000 banknote — the perfectly reflected cone visible across the lake's unobstructed surface on clear days — creating one of the most iconic natural vistas in Japan just minutes from the onsen. The bicarbonate thermal waters complement the extraordinary natural and cultural landscape of the Fuji-Hakone-Izu National Park, where volcanic activity, alpine forests, and ancient pilgrimage routes converge in one of Japan's most visited national parks.