As I mentioned, I didn't have a lot to do with the Valiant, but I was a bit surprised they landed at Eastleigh at which only the touchdown on 09 was concrete, the rest of the runway being hard-packed 'murrum' earth, not dissimilar to some roads in Australia, so you would have been at home there.
When the runway was dry, a Beverley on reverse thrust could disappear in a red cloud of its own making, and when wet that dust became a thin veneer of mud. I once watched a Beverly doing a gentle four-wheel drift!
They used to land Comets also and you could see and hear mud hitting the flaps on landing. Remember, that until the new airport at Embakasi was opened, Eastleigh was Nairobi Airport, and all sorts of long range civil air traffic such as the mighty Constellation landed on what was essentially a dirt strip.
There was little in the way of hardstanding for anything of the weight of a "V", and after the Valiant, all Victors and Vulcans, and eventually 208 Sqn Hunters, went to the new airport. We kept all the visiting Canberras on lone rangers however! Mud and dust didn't seem to worry them too much.