Having it in their clothes, shoes, backpacks or whatever is a different matter. Dressing to beat the sands however is a tall order. When it comes to shoes there are a few options a visitor can go with. Sandals are one, being open as such it's easy to just kick the sand off. Some will still stick to the bottoms of your feet due to body oil and persperation anyway, but atleast your not collecting it. Boots are a good option. By this I'm more talking about riding, or tall combat boots, as anything shorter will still collect sand as you walk. Anything like running or basketball shoes will just catch anything you cick up and have countless ways for sand to work it's way in.