Take a leaf out of the chimpanzee's book and experience Nyungwe forest from the treetops. The only one of its kind in East Africa, the Canopy Walk is a 200m-long rope-style metal bridge suspended between ancient mahoganies. From your vantage point about 60m above the forest floor, enjoy the flash of colourful birdlife (there are some 300 species) and look out for Nyungwe's baker's dozen of primates, including the rare golden monkey and colobus. Once you've spied all the flora and fauna you can, with a good dose of amazing views, you'll return to the ground.