Cat Ba National Park

This guide to Cat Ba National Park follows the Cat Ba langur, a shaggy black monkey with a golden-blond head found only on this island, and its collapse from roughly 2,500 animals in the 1960s to just forty confirmed by 2003. You'll hear about hunters who could earn fifty dollars for a single kill, in a place where a family lived on less than 350 dollars a year, and about a small team from a German zoo who arrived to work with local rangers. Watch the cliffs above the trail, where they still cling on.