I was debating for a while what to put in the run now that the grass has been eaten. I went with sand after much reading in these forums. I LOVE IT! It has rained for the last week straight bad pouring rain. The sand is damp but its not muddy and doesnt stick and the girls come out in it unlike when they avoided the wet ground. I also added sand to the coop and I have a giant kitty little scoop ordered for cleaning it out. I really really like the sand so far. Now to keep the area from so much rain we are ordering a shelter that will go over it, which we will put a little fenced area that is uncovered for them to go out in to the sun. They love to sun bathe.