Dzanga-Sangha may not be a destination often bandied about in travel magazines but it happens to be an oasis for a variety of endangered species and spectacular flora. Criss-crossed by ribbons of flowing rivers, a boat trip is one of the best ways to discover the landscape. Joined by a seasoned local guide, you'll take to the water, passing through dense forest, sunlit clearings and keeping watch for the plentiful wildlife. The Congo Basin plays host to over 400 species of birdlife, from the elusive Great Blue Turaco to large palm-nut vultures. Some of the most predator-free waterways in Africa, you're bound to spot members of the 'Forest Five' ambling through the trees and drinking along the banks. These include western lowland gorilla, forest elephant and forest buffalo, bongo and the giant forest hog. Not to mention, clouds of butterfly! The scenery is sublime and the photography is amazing, and you'll enjoy the best of both on a boat cruise. Time it just right and you'll witness the sun setting beautifully over the trees. The most pleasant time to visit the forest is in the least rainy months, from May to September.