The Geosites are called Mt. Hallasan, Manjanggul Lava Tube, Seongsan Ilchulbong Tuff Cone, Seowipo formation , Cheonjiyeon waterfall, The Columnar joints at Jeju jungman , Daepo coast, Sanbangsan Lava dome, Yongmeori Tuff ring and Suweolbong tuff ring