Soemulkkak sits on the coastal road in Sinheung-ri, Jocheon-eup, Jeju, where spring water rising from rock holes flows into the sea. It once served as the village water source and a place to water cattle, and today it is known for Olle Course 19 and a rainbow road photo spot. Washing and bathing areas remain, and the coastal scenery changes at high tide. The site is small, so there is not much to look around.