Nanhu Dashan (南湖大山)
If you ask 10 experienced Taiwanese high-mountain hikers which mountain is the most beautiful, 9 are likely to say ‘Nanhu’.
Taiwan’s
 fifth highest (3,742 meters) and the highest in the North-East. If you 
have climbed  any of the main peaks in Shei-pa (Snow) National Park you 
may have watched the sun rise from behind Nanhu and its formidable 
neighbor, Jhongyangjian Mountain.
The
 trailhead is 3 hours from Taipei City in southern Yilan County, quite 
close to Wuling Farm - the trailhead for Snow Mountain. The first day’s 
trail passes through lush mixed temperate and pine forest. On later days
 there are expansive views from alpine meadows of dwarf bamboo, juniper 
and rhododendron. At the higher sections the paths traverse craggy 
cliffs next to enormous landslides, ending in the glacial cirques these 
mountains are famous for.
More photos here.
Nanhu
 is only suitable for the more experienced and well-prepared hiker 
prepared to invest between 4 and 8 days (doing a loop including 
Jhongyangjian). If time-limited or if there is a a lot of snow present, 
consider making Nanhu North Peak your target - thus avoiding the 
trickier fixed-rope sections before the final peaks. Less experienced 
hikers should consider other peaks elsewhere such as Snow Mountain, 
Hehuan, Cilai South etc.
I
 can assist in arranging logistics for this area (serious hikers only): 
permits, cabin booking, and booking the direct shuttle from Taipei 
(getting off right at the trailhead).