It is operated and managed by members of the Japan Sea Turtle Council, a non-profit organization (NPO).

In 2020, the museum was temporarily closed to prevent the spread of the new coronavirus infection (COVID-19), but reopened in mid-May, and the total number of visitors since its opening exceeded 320,000 in June.

[5][6][7] Fish and shellfish are displayed in tanks installed in classrooms in the old school building, in the old washrooms, and in the 25-meter pool.

[2] Most of the more than 1,000 sea creatures of 50 species on display were caught by local fishermen in fixed nets or by the staff themselves.

The 25-meter pool is home to sharks and eagle rays such as hammerhead sharks, the large circular tank is home to mackerel, Ocean sunfish, and small stingrays, while the original classroom houses lionfish and moray eels.