The Jeju Olle trails are 27 marked walking routes circling the island's coast, and Route 7 on the south shore is the one to do if you only do one: 17.6 km of cliffs, hidden coves, and tangerine groves from Oedolgae Rock to Beophwan. It is free — the 15,000 KRW covers buses and lunch.
The Start: Oedolgae
Bus from Seogwipo city center to the Oedolgae stop — the lone sea stack rising 20 m out of the water just offshore. The trail begins at the viewpoint and immediately delivers: the path runs along the cliff edge with the stack behind you and the whole south coast ahead. Look for the blue-and-orange ribbon markers (the ganse pony symbols) — the route is well-signed but the ribbons are the reliable guide.
The Middle Stretch
The first half is the dramatic part: cliff-top boardwalks, the hidden cove at Sojeongbang waterfall (a small fall that drops nearly into the sea), and the long stretch through the Jeju tangerine groves where the trail narrows to a stone-walled farm lane. Around the midpoint the path drops through Beophwan's outskirts — there are restaurants and a convenience store here for lunch. The haenyeo (women diver) restaurants near the coast serve fresh abalone porridge and raw sea urchin in season.
The Second Half
The western half softens — more groves, a stretch along the Beophwan estuary, and the quiet fishing harbor at the end. The official end stamp box is at the Beophwan trail kiosk; if you are collecting Olle stamps in the trail passport (sold at the airport and trail centers), this is where you stamp.
Logistics
17.6 km takes five to six hours at a walking pace with stops. It is almost entirely flat — this is a walk, not a hike. Bus back to Seogwipo from Beophwan, or continue onto Route 6 if you are doing consecutive days. Spring and autumn are ideal; in summer start at dawn to beat the heat, and in any season bring more water than you think — the coast has almost no shade.