Reference: allaboutjeju.wordpress.com/2014/07/25/jeju-pyoseon-beach/
Leisurely trek along the coastal road
A 19-kilometer trekking trail begins at Pyoseon Beach and ends at Namwon Port. Half of the route is on the open coastal road, the Minsok Coastal Road, and the other half is made up of climbs like Geoseunsaemi Oreum and Mae Oruem, which provide breathtaking views at every turn.
Chillax at waterfront cafes
It's a moderately difficult hike that takes about 5-6 hours to complete and requires a lot of stamina due to its length, despite the fact that there are few climbs. There are restaurants and cafes along the shoreline for rest, but few shops between Songcheon and Sinheung-ri Ports, so bring water.