Niseko-Shakotan-Otaru Kaigan Quasi-National Park
On the coast of the Sea of Japan, there is a Marine Protected Area  covering the west and north coast of Shakotan peninsula from Kamoenai to Otaru. The park also protects the area around the Mount Raiden and Niseko Volcanic Groups.  Niseko-Shakotan-Otaru Kaigan Quasi-National Park was established in 1963.

According to the World Database on Protected Areas, this park protects the following species:
Prunus sargentii, a species of cherry tree
Carcinactis ichikawai, a species of sea anemone
Carcharodon carcharias, a species of shark
Aptocyclus ventricosus, a species of lumpsucker
Haliclyctus tenuis, species of true jellyfish
Finella sp., a species of mollusk

Shakotan Peninsula (Shakotan-cho) - 2019 All You Need to Know BEFORE You Go (with Photos) - TripAdvisor