Yururi Island is a small uninhabited island off the coast of the Nemuro Peninsula. It is prefecturally designated as a Natural Treasure. “Yururi” means “an island of cormorants” in Ainu. The island still remains as a breeding place for cormorants, etopirika, keimafuri, red-faced cormorants and many other sea birds, some of which are on the verge of extinction. It is a flat table-shaped island surrounded by cliffs with a height of 40 m. Just to the north of it lies a small island of Moyururi. This island is known for bright green pastures, where a herd of about 20 horses are leisurely grazing. The horses on this island were once used to carry sea tangles but now they have run wild. The island is also the breeding place of sea otters and seals. On top of the cliff spread wetland, where 300 species of plant grow. Yururi Island is a paradise for wild life.