Check out the 'Jeongmul Saem' at the Oreum entrance
This parasitic volcano rises 466 m above sea level and has a horseshoe-shaped crater. There is a spring called 'Jeongmul Saem' at the entrance to Oreum, hence the name 'Jeongmul Oreum', and it is famous for its beautiful golden color of silver grasses, so many people visit during the fall. You can take an easy hike to the summit of Oreum, where you can admire the surrounding natural scenery, including Hallasan National Park.