Sonji Oreum Volcanic Cone

Located in Jongdal-ri, Gujwa-eup, Jeju, Sonji Oreum Volcanic Cone was named "the grandson of Hallasan" because its appearance resembles a miniature version of Hallasan. Along with Ttabi Oreum and Keunsadeumi Oreum, it is one of the three major oreums renowned for their beautiful silver grass in autumn. To reach the crater ridge, you must trek through a dense forest of silver grass. Below the southern Albong peak, natural grasslands stretch out, offering a pastoral view of grazing cows roaming the plains or climbing toward the summit.