Hakone Garden of the Wetlands

箱根町立箱根湿生花園

Marsh to alpine in a 40-minute loop

⚠ Closed Dec to mid-Mar

Hours

9:00-17:00 (last entry 16:30). Open daily 14 March to 30 November 2026

Tickets

Adults ¥700, elementary students ¥400

Address

817 Sengokuhara, Hakone

A small botanical garden on the Sengokuhara plateau, and Japan's first dedicated to wetland plants. Boardwalks lead you from marsh through woodland and meadow up to an alpine zone, and a slow lap takes about 40 minutes. Skunk cabbage carpets the ground from late March, irises come in early summer, and the maples turn in late autumn. 2026 is its 50th year, with an anniversary panel display on site.