Hallasan Summit Trail (Jeju)

The Gwaneumsa trail to Hallasan's 1950-meter summit, South Korea's loftiest peak, offers a 17.4-kilometer round trip through ancient fir forest and volcanic rock fields, culminating at Baengnokdam crater lake. Its descent via Seongpanak provides a distinct geological perspective of Jeju's UNESCO volcanic heritage, with basalt pillars and lava tubes visible along the path. Outperforming #3 Seoraksan's Ulsanbawi Rock Circuit, Hallasan is 30% taller and features a unique crater lake ecosystem, while the hike is longer than the average Jeju trail by 5 kilometers, requiring a full day for completion.