Welcome to Onshi Hakone Park, known in Japanese as 恩賜箱根公園, a prefectural park in the town of Hakone, in Kanagawa Prefecture. It sits on Togashima, a peninsula that juts out into Lake Ashinoko, and that setting is the whole point of the place. Water spreads on several sides, forested mountains rise behind it, and on a clear day Mount Fuji joins the scene. This guide tells the story of the park as a whole: how an imperial summer retreat became a public landscape, and what makes the peninsula so special. I will not describe individual gardens, paths or buildings in detail. Those are yours to discover as you wander. The name itself is a clue. Onshi means something like royally given, and by the end of this guide you will know exactly what was given, by whom, and when.