There is a small, well-used, fenced, public dog park in a neighboring town that is receiving a "facelift". With the grass worn away, it was a dustbowl or a mud pit depending on the day's precipitation. Recently 3/4 inch rounded stones were dropped to cover the surface. Which improves drainage, helps with keeping it cleaner, and "looks nice".... But dog owners aren't happy about the unsteadying surface, and the heat the stones hold in the height of summer (they ripped out the only shade tree at present, in prep for a future shading structure).
What I'm looking for is feedback from other dog-park-goer's across the country (or world??) where the grass is gone and some other surface was poured/deposited/installed. Aside from grass, what's the surface of YOUR dog park?