Sibuyan Island — Mount Guiting-Guiting Climb

Known to climbers simply as G2, Mount Guiting-Guiting on Sibuyan Island is widely regarded as one of the most difficult and technical mountains in the Philippines, rated at the maximum difficulty of 9/9. Rising to 2,058 metres, its name means jagged or serrated, a perfect description of the saw-toothed ridgeline that defines the climb. This four-day expedition is a serious mountaineering challenge for experienced hikers only.

The route passes through a remarkable gradient of ecosystems, from lowland and montane forest into eerie mossy forest dotted with pitcher plants, before breaking out onto the exposed summit ridge. The signature obstacles are legendary: the Knife Edge, a razor-thin ridge with sheer drops on both sides demanding precise footing, plus rock features with names like the 90-degree wall and Kiss the Wall, where you must scramble and cling to vertical rock. The reward is a summit of cloud seas and a skyline that looks hand-cut with a serrated blade.

Sibuyan itself is called the Galapagos of Asia for its dense endemic biodiversity, having never been connected to another landmass. This climb requires prior mountaineering experience, a good head for heights and solid fitness, plus mandatory local guides and permits. It is one of the ultimate trekking trophies in the country.