No grass, just dirt and the "lake" (pond) is pretty gross in summer. Not sure about the water quality. It's great they have a hose available to wash your dog off. I don't ever see dogs on the large concrete structures- my dog's won't go on them at all. I'd like to see a lot more shrubbery (Sage and fountain grass would be good) for the dogs to sniff around. All the dog parks are pretty boring if your dog isn't a player.