Lake Saroma, Coastal lake in Okhotsk Subprefecture, Japan.
Lake Saroma stretches across roughly 63 square kilometers along the northeastern coast of Hokkaido, making it the largest body of standing water on the island. Two narrow channels connect it to the Sea of Okhotsk, creating a mix of salt and fresh water that spreads through shallow bays and long stretches.
The area around the water became a permanent settlement in 1894 when Jingorou Suzuki built the first Japanese homestead near what is now Hamasaroma. Before that, the Ainu used the shores for seasonal fishing and gathered materials from the reed belts without establishing fixed villages.
The name comes from the Ainu language and means Saro-oma-pet, referring to the dense miscanthus reeds that grow along the shores. Visitors still see these tall grasses today, swaying in waves with the wind and framing the water with a natural border.
Fishing spots line the shore, with different species available depending on the season and section. Many points can be reached by car or bicycle, and some paths lead straight to the water and work well for less experienced visitors.
The two channels to the sea were artificially deepened to stabilize water quality while maintaining the exchange between salt and fresh water. This intervention allows marine animals to move into certain zones while other parts host more freshwater species.
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