Shinji Lake is located between Matsue and Izumo districts in Shimane Prefecture. The lake is a known a‘brackish-water lake’, because it has a mixture of both fresh and seawater.

The word Shinji evolved from the word ‘Swine’s pathway’. It is the 7th largest lake in Japan. Moreover, the lake is a habitat of viand fishes, both fresh water and seawater varieties.  

It is possible, with the present quantity of shellfish, to purify 5 times the amount of water in Shinji Lake. In winter,  birds, including swan, goose and duck, come to the lake.