Lake Tanuki is an artificial reservoir located at the southwestern base of Mount Fuji in Fujinomiya, Shizuoka Prefecture, Japan. The lake was created in 1935 when a dam was constructed on the Shiba River for hydroelectric power generation. At an elevation of approximately 630 meters, it serves as both a functional water resource and a scenic destination that has grown in popularity among travelers seeking views of Mount Fuji without the crowds found at more famous viewpoints.
The lake's primary appeal lies in its stunning reflections of Mount Fuji on calm days, particularly during early morning hours when the water surface is most still. The reservoir spans roughly 4 kilometers in circumference and is surrounded by forested mountains, creating a natural amphitheater effect that frames Japan's iconic peak. During spring, cherry blossoms bloom along portions of the shoreline, while autumn brings vibrant foliage that contrasts dramatically with Fuji's snow-capped summit. The area is also known for its diamond Fuji phenomenon, when the sun aligns perfectly with the mountain's peak during specific times of year, typically in mid-April and late August.
Visitors can walk along the paved path that circles much of the lake, offering multiple vantage points for photography and nature observation. The 3.5-kilometer lakeside trail is relatively flat and suitable for casual walkers. Fishing is permitted in designated areas, with the lake stocked with rainbow trout and bass. Several camping facilities and休暇村 (Kyukamura) lodges operate near the shore, providing accommodation options for those wishing to experience sunrise views over Mount Fuji. The area remains relatively quiet compared to the Fuji Five Lakes region, making it attractive for photographers and those seeking a more tranquil mountain experience.
Lake Tanuki is accessible by car via National Route 139, located approximately 20 kilometers southwest of Fujinomiya city center. The drive from Fujinomiya Station takes roughly 30 minutes. Public transportation is limited, with infrequent buses running from Fujinomiya Station to the lake area, primarily during peak seasons. The journey by bus takes about 50 minutes. There is no admission fee to access the lake or its surrounding paths. Free parking areas are available at several points around the lake, though spaces can fill quickly during cherry blossom season and autumn foliage periods. Winter access is generally maintained, though tire chains may be necessary during heavy snowfall.
