Just an hour west of Odessa, we stopped here for a couple of hours to play in the sand. We rented the plastic disks and played in the dunes. It tires the kids out quick since it difficult to march up and down sand hills. The rangers were helpful in pointing out the best places to slide. The disks are rated up to 150, so it's not very effective for larger adults. Also, you will get lots of sand in your car no matter how much you try and dust off before.