Lake Yamanaka is one of the five lakes located near Mount Fuji in Japan. It is the largest of the five lakes and is known for its stunning views of the iconic mountain. The lake covers an area of approximately 13.1 square kilometers and reaches a maximum depth of about 13 meters. The area around Lake Yamanaka is popular for outdoor activities such as fishing, boating, and hiking. It is also a designated part of the Fuji-Hakone-Izu National Park, attracting many visitors who come to enjoy the natural beauty and recreational opportunities available in the region.