Hallasan mountain, the highest peak in Korea (1950 masl), including the volcano groups Jejudo. There are about four thousand species of animals and plants that make Hallasan 1800 as their habitat.
See also Baekrokkdam crater lake at the top. Baekrokkdam or "Hundred Deer Lake" which inspired the beautiful folklore about fairies that come down from heaven to play with the white deer.
Many tourists who visit Hallasan in the spring to see the azaleas blooming in the mountains. The mountain is also pretty easy to climb. Paths along the 10 miles to finish you live in a day.