While Grey Cliffs campground didn't impress me as much as the other campgrounds as it was more open with far less trees than the others, you won't have the RV crowd here, this is a tent only campground, No RV's or trailers allowed.  Campsites can be reserved during the summer season.  On my visit only two of the three loops were open in June, the other loop was being used by the Park Service.  Sites are nicely spread out which is nice.  There are 2 ADA Accessible campsites site C3 and A8 both sites are located next to accessible restrooms.  Campground has vault toilets, trash service and recycling.  Each site has a picnic table and metal fire ring.  Fire ban is currently in effect.  No water is available at the campground, water can be obtained at the Visitor Center.  Campground does have some group camping sites for groups between 9 and 16 people.