Otatomari Pond
オタトマリ沼
The largest lake and marsh on the south side of Rishiri Island, with the steep southern cliffs of Mount Rishiri rising behind it. On clear days the reflections are spectacular, and the Numaura Observation Deck is nearby.
Otatomari Pond is the largest lake and marsh on Rishiri Island, with a circumference of about 1 km. Behind it rises the steep southern face of Mount Rishiri, in sharp contrast to the cone-shaped northern side. A roughly 20-minute trail loops around the lake, passing marsh plants and a small shop, where Rishiri kelp ice cream and sea urchin products are popular. Nearby, the Numaura Observation Deck (Shiroi Koibito Hill), famous for appearing on the packaging of Shiroi Koibito cookies, overlooks the lake and the mountain. Free admission; island sightseeing buses stop here.
Opening hours
All day (winter road closure)
Nearby sights
- Minamihama Wetland
- Senposhi Misaki Park
- Mount Rishiri
- Mikaeridai Observatory
- Himenuma Pond
- Cape Peshi
- Rishiri Fuji Onsen
- Kutsugata Cape Park