Well, that turn-off is Guinea. Little known to most of the world, this is a land of surprising beauty, from the rolling mountain plateau of Fouta Djalon to wide Sahelian lands and thick forests. Overland drivers have long been drawn here for the challenge of steering their vehicles over rocks and washed-out paths. Nature lovers lose themselves on long hikes past plunging waterfalls, proud hills and tiny villages; or by tracking chimpanzees through sticky rainforest. But the best thing about Guinea is that almost nobody else bothers to take this turn-off – meaning you’ll likely have the country to yourself.