The Hamer ceremony of Jumping the Bulls, an ancient rite of passage for young men who have to walk across the backs of up to 6 bulls, four times. If successful they can choose their own bride. (3 photos)

And, for the final image, the only sign of aggression I encountered, taken from the car window as we went past. An image of the potential tension between tribes and tourists - I wonder how this will develop over the next decade both for better and worse.