Visit Jeju describes Route 20 from near the fishermen's welfare hall at Gimnyeong West Port to the Jeju Haenyeo Museum area as a 17.4 km walk of roughly 5–6 hours. Its route listing includes Gimnyeong Seongsegi Beach (1.6 km), Hwanhae Wall (3 km), Woljeong Beach (6.9 km), Haengwon Port (8.1 km), Jwaga Beacon (11 km), Gyeryong village hall (13.3 km) and Baengdi Trail (15.4 km). The walk combines coastal roads, paved paths and villages, but windy conditions can make exposed sections uncomfortable. Carry water, comfortable shoes and a windproof layer, and plan to finish before dark. The published tourism directions suggest bus 101 to Gimnyeong transfer stop near Gimnyeong Elementary School, followed by about an 11-minute walk to the trailhead. Treat this as published guidance, not confirmation of current buses or stops. Check live transit and the Jeju Olle operator's latest diversions.