They say that a camel can smell water. I'm not sure if that's true, but they do have a knack of turning up at camp..
We had been bouncing along in the 4x4's since first light. Progressively the road turned from tarmac to gravel to sand, and then with the minarets of Al Hashman fading back into the heat haze..
We had tents, but didn't feel any need or desire to use them except for storing kit, preferring to sleep out on the open sands all alone, save for the occasional nosy camel..