Silver Cloud Peak (Dinh May Bac), Cuc Phuong National Park

Silver Cloud Peak (Dinh May Bac) is the highest point in Cuc Phuong National Park at 648 m, known locally as the roof of the park. The park lies in Nho Quan District, Ninh Binh Province, about 120 km southwest of Hanoi, Vietnam. The route climbs through dense primary forest, crosses seasonal streams and finishes on a narrow limestone crest. A park ranger or licensed guide is required because the upper section is unmarked.

Trailhead access starts at the park headquarters, where the guide is arranged. Park entry is 60,000 VND, and the guide fee is roughly 500,000-800,000 VND per group. Access from Hanoi is as for the Ancient Tree Trail: buses from Giap Bat bus station to Nho Quan for about 90,000-120,000 VND and a taxi for the last 20 km, or a private car taking 2-2.5 hours.

The round trip is about 6 km and takes 5-6 hours, with roughly 500 m of gain from the trailhead to the 648 m summit. It is rated hard because of the steep, sustained climb, the unmarked upper section and scrambling on sharp, loose limestone. The surface is forest earth and roots on the lower slopes, then broken rock near the crest. Tree cover gives good shade for most of the route, but the crest is more exposed, and the terrain is slippery after rain.

Landmarks are few because the forest is dense, and the guide leads walkers past seasonal streams to the summit crest, where views over the surrounding karst forest open up in places. Turning around before the crest is sensible if weather turns wet, as the limestone becomes dangerous underfoot. The descent follows the same route.

There is no reliable water on the route and no refuge huts, so visitors carry about 3 litres each and trail food. Ankle-supporting boots and gloves protect against sharp rock, and leech socks are useful from May to September.