Way deep down into the lowest depths of the Great Rift Valley, near Ol Donyo Lengai volcano, there’s a remote camp that is edged by natural plunge pools. Within only short walk, a guest can find rare, well-preserved human footprints left in the mud between 5,000 and 19,000 years ago. No other site in Africa has as many ancient fossilized Homo sapiens footprints. Lake Natron Camp is rustic – which makes sense – it doesn’t look like anything other than nature should be there at all.