Hyeongje Seom is an uninhabited island 1.5 km south of Sagye-ri Port, in the sea off Sanbangsan. Beginners can snorkel in the clear water, and the area is known as a fishing spot for sea bream and striped beakfish. Two rocky islands face each other like brothers, so their shape changes with the viewing angle, and the sunrise can be seen between them. Access is limited because visitors must arrive by boat.