Hi Chris - never been to that part of Africa, but my take it anywhere and everywhere camera is my Olympus Tough, TG4. Version 5 is out now with a better sensor. They're not cheap, but they do what they say on the tin - very tough: dirt, dust and waterproof (I use mine to take video and stills snorkelling).
One of the reasons I bought my Panasonic bridge is for travelling and avoiding having to take a bag full of lenses and other paraphernalia. So that will go with me on forthcoming journeys as well as the Olympus, which I pretty much always carry.