Hallasan National Park summit, there is a crater lake called “Baekrokdam.” Since the mountain has high altitude, there are a number of alpine plants and animals. 1800 kinds of plants, including 400 kinds of specimen plants and 50 kinds of special plants, are living in Hallasan. So the Jeju island is designated by Biosphere Reserve in 2002 and Hallasan National Park is one of the region of Jeju Bioshere. Hallasan National Park Hallasan National Park () is located in the province of Jeju-do, South Korea. It was designated as the 9th national park in 1970. It features the highest mountain in South Korea,
Hallasan and call out 노인성, they could live a longer life. The name represents a mountain that is located at the back side of a town and protects the town's residents. Jeju people called Hallasan Jinan because Hallasan blocked winds that were blowing from the Pacific Ocean and also protected the residents. Dumuak is another name for Hallasan. The name represents the bold head mountain. According to a legend, a hunter accidentally ripped God's belly button. God expressed his anger by ripping off the peak of Hallasan. The remaining part of the mountain became Baengnokdam (백록담) and the ripped part of