I always lay a large tarp before erecting my tent no matter where I go to keep dirt out. Keeps the bottom of the tent clean and dry too. Ever notice sometimes that the ground is wet under your tent when you close it up and dirt is sticking to it? Sand is sand and it seems to get where it wants to go no matter what you try to do to stop it. I still try to minimize and at least control it to the best of my ability.
