Shiretoko National Park's volcanoes, coasts and lakes shelter a variety of rare and endangered species.
The park is inhabited by mammals such as spotted seals, sperm whales and Japan's largest land animal: the brown bear. The area also attracts an abundance of birds, including Blakiston's fish owls, white-tailed eagle and Steller's sea eagles.
The Shiretoko Peninsula is covered with an old-growth conifer and broadleaf forest, and dotted with alpine plants such as the endemic Shiretoko violet.