Huay Xai, a long, bumpy day’s drive west of Luang Prabang lining the Thai border, is home to the Bokeo Nature Reserve and its legendary ‘Gibbon Experience’. In a tract of dense, humid rainforest, a network of observation platforms high in the trees have been interconnected by zip wires, enabling visitors to ‘fly’ through the forest canopy with their guides in search of troupes of the elusive Black Crested Gibbons. Nights are spent suspended above the ground in specially constructed treehouses. As well as a head for heights, you’ll need a sturdy pair of boots and plenty of stamina as the safaris involve trekking over steep, uneven terrain – an authentic jungle adventure.