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Nanao-nishi Bay widens westward at Nanao Bay. The relatively shallow bay is calm throughout the year. Full-fledged oyster farming started there in the Taisho period. The method used is “suspension-style culturing”; strands of scallop shells with oyster seed planted in them are suspended from rafts. Culturing rafts and buoys lined up along the bay, and houses with black-tile roofs standing close to each other along the indented shoreline form a beautiful Satoumi landscape. Nutrients provided to the sea from the land area through rivers and phytoplankton that propagate through the process of photosynthesis make Nanao-nishi Bay suitable for oyster farming. It ranks first on the Sea of Japan side of the country in terms of oyster harvest.