Jagunae Pogu is a small harbor in Gosan-ri, Hangyeong-myeon, Jeju, facing Chagwido and serving as the departure point for boats to the island. Visitors can take a Chagwido sightseeing cruise or a fishing tour boat, and semi-dried squid is sold in front of the harbor. A coastal road runs from the harbor past Suwolbong, and the Chagwido trail takes about an hour to walk in a loop. A submarine that once operated here no longer runs.