Need a reservatuon I busy season. Check maps in satellite view to pick your spot, or thru Recreation dot gov. There are areas big enough for groups but parking for trailers limited to 30 ft. Areas adjacent to individual campsites are amazing and leave plenty of room to share. During rafting season there were plenty of kayaks and rafts coming from Rimrock reservoir area. Fun to watch. Not sure where to put in and take out if you arrange your own trip, But there clearly appeared to be guided groups that went in together. That is a good idea for safety. And after rafting there is a nice restaurant, on the river, with picture windows to refuel and relax and enjoy comraderie. The canyon is lovely with steep sides which may limit your solar if you rely on it for camping.