Lake Onnetō
温根沼
A brackish lagoon in Nemuro offering birdwatching, ancient shell mounds, and views recognized as one of the city's top sights.
What it is
- A brackish lagoon on the Nemuro Peninsula within Notsuke-Furen Prefectural Natural Park.
- A designated Important Wetland in Japan with a circumference of approximately 15 kilometers.
- A site containing the Onnetō Shell Mound with remains from the Jomon and Satsumon periods.
- A productive ecosystem where clams and surf clams are harvested from the tidal flats.
What to see
- Migrating whooper swans and red-crowned cranes that visit the lake.
- Breeding grounds for the rare Blakiston's fish owl.
- Panoramic views of the water from the Onnetō Bridge on National Route 44.
- The Onnebetsu River flowing into the lagoon's 15-kilometer perimeter.
Notes written by Japan Gems from facts in Japanese Wikipedia.
Where it is
Lake Onnetō Open in Google Maps
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