Shiretoko National Park covers most of the Shiretoko Peninsula at the northeastern tip of the island of Hokkaidō. The word "Shiretoko" is derived form an Ainu word "sir etok", meaning "end of the Earth". One of the most remote regions mostly accessible on foot or by boat. The park is best known as the home of Japan's largest brown bear population and for offering views of the disputed Kunashiri Island. The park has a hot springs waterfall called Kamuiwakka Falls. Kamui wakka means "water of the gods" in Ainu. In 2005, UNESCO designated the area a World Heritage Site.