Check out the the Yongduam or Dragon Head Rock
The Yongduam (or Dragon Head Rock) is on the Yongdam-dong seashore which is in Jeju City. It is simply a Clump of jagged basalt rock, but if you look at it from the west Yongduam resembles a dragon with its mouth open ready to roar. However the Rock also steeped in tradition and superstition, and it comes with a few legends.
According to one legend, a Dragon envoy of the Dragon King was sent to Mt. Halla (the Highest Mountain in Jeju) to pick a herb which would give eternal youth. But a god of Hallasan (or maybe Hallasan himself) biffed him into the sea, and only the head protruded above the sea. The shape of the head is like that of a wailing dragon.