Lake Yamanaka is the largest of the Fuji Five Lakes and sits at an elevation of 980 meters in Yamanashi Prefecture, approximately 100 kilometers west of Tokyo. Formed thousands of years ago by volcanic activity from Mount Fuji, the lake spans 6.57 square kilometers and reaches a maximum depth of 13.3 meters, making it the shallowest of the five lakes. Its name derives from the mountain ridge visible behind it when viewed from certain angles.
The lake holds significance as part of the Fuji-Hakone-Izu National Park and offers unobstructed views of Mount Fuji's north face, particularly stunning during clear mornings and evenings. The surrounding area has long served as a resort destination for Tokyo residents seeking mountain air and natural scenery. The lake freezes completely during winter, a phenomenon rare among the Fuji Five Lakes, creating unique ice fishing opportunities.
Visitors can engage in various seasonal activities including swan-shaped pedal boat rentals, fishing for wakasagi (Japanese smelt) and black bass, and cycling along the 14-kilometer lakeside path. The Hananomiyako Park on the lake's northeastern shore features seasonal flower displays with Mount Fuji backdrops. Winter brings opportunities for ice fishing and viewing the frozen lake surface, while summer attracts campers and water sports enthusiasts. The nearby Oshino Hakkai, a collection of eight spring-fed ponds formed by snowmelt from Mount Fuji, lies just 10 minutes by car from the lake.
Access from Tokyo requires taking the JR Chuo Line to Otsuki Station, then transferring to the Fujikyuko Line to Fujisan Station, followed by a 25-minute bus ride to the lake. Direct highway buses from Shinjuku Station reach the lake in approximately 2 hours and 15 minutes. There is no admission fee to access the lake or surrounding public areas, though individual attractions, boat rentals, and park facilities charge separate fees. Parking areas around the lake typically cost between 300-500 yen per day.
