The Municipal Museum introduces the modern and past forms of Monbetsu with sophisticated exhibits.

The museum presents spectacular exhibits based on three major themes: Hama, which introduces the development of fishing; Oka, which depicts the history from the Paleolithic Age to the present day; and Yama, which introduces underground resources such as sand, ore, and gold. Other exhibits include seals such as Gomafu, Wamon, and Kurakake; Steller's sea lions, fur seals, foxes, and Ezo flying squirrels; a 6-meter-long skeletal specimen of a common sei whale; and many other animals that live in Okhotsk.