Mount Hallasan

The guardian of the island. Mount Hallasan is a majestic shield volcano that forms the bulk of Jeju Island. As a UNESCO World Heritage site, it offers a beautifully maintained trail network through unique basaltic landscapes and diverse flora. The trek to the summit is a full-day commitment, ascending through ancient stone-oak and fir forests into a subalpine zone. At the summit, hikers are rewarded with a direct view into the Baengnokdam—a vast crater and seasonal lake (White Deer Lake)—and, on clear days, panoramic views of the entire Jeju coastline and its surrounding volcanic 'oreums'.

Mount Huashan, one of China's Five Great Mountains, is often described in media as one of the most dangerous hikes in the world, although modern safety infrastructure significantly reduces objective risk. Rising dramatically from the plains near Xi'an, the mountain is essentially a massive solid block of sheer granite featuring five distinct peaks. The hike involves a steep ascent (or cable car ride) followed by traversing narrow ridges linking the North, East, South, West, and Central peaks. The mountain is most famous for the optional 'Plank Walk in the Sky' near the South Peak (2,154m), where hikers clip into a fixed steel safety cable while traversing narrow wooden planks bolted into the cliff. It is a demanding experience that blends Taoist religious history with extreme exposure.