Lake Ashinoko, also known as Lake Ashi, is a picturesque crater lake that lies in the Hakone area of Kanagawa Prefecture in Japan. Formed in the caldera of Mount Hakone after the volcano's last eruption 3000 years ago, the lake remains a popular attraction due to its scenic views and the tranquility it offers. Surrounded by mountains, including the famous Mount Fuji, Lake Ashinoko provides postcard-perfect scenes, especially with the reflection of Fuji on clear days. Visitors often take pleasure boat cruises or pirate ship tours to fully enjoy the serene beauty of the lake and its surroundings. Apart from its natural appeal, Lake Ashinoko is part of the Hakone Shrine complex, with the torii gate on its waters being an iconic image. The area is steeped in history and tradition. It is famous for hot springs, geological interest, and its view of Mount Fuji. The lake is also renowned for its fishing, particularly for the Hakone trout. Tourists can engage in various activities like hiking, sightseeing, and enjoying onsen spas in the region.