I have mixed feelings about Robbers Cave - there are so many different campgrounds and some are much better than others. First of all, you have all the campgrounds around the lakes in the main park area. The only one with decent bathrooms is the RV site on far side of the road from the lakes. The rest either have vault toilets or top of the line 1940's, never been upgrade bathrooms. However, if you don't mind primitive camping there are a ton of spots on the other side of the lakes that are less busy and although without bathrooms, if you stayed on the main side you may decide no bathroom is better than some. The hiking is great in this area either way. Definitely due a visit. Campgrounds mainly in treed areas. The park gets a lot of day use, so expect very crowded afternoons if you are in the main gate area, the crowds leave after dark though.
This campground is nothing spectacular but I love it anyway; I just have really great memories being here. The campgrounds are pretty primitive, you have a fire ring and picnic table, vault toilets where we stayed. We had close access to the river from the campground, hence the photos. We got poured on here, to the point that we had to dig out a moat so that water would not flood the tent; it was a blast. The next day we went canoeing down the slow moving river which was also great. I like this campground and hope to return soon.
Camping here on a Sunday night was great. I am not sure how busy it gets during high camping season, but we had the place basically to ourselves. The campgrounds themselves are not anything spectacular, but I mostly value solitude while camping. The campsites closest to the lake are pretty crowded together and not many sites have established fire rings, those that do are the user created variety. But the campground is kept up. If you are looking for a bit more privacy there is a separate camping area; it off the main road down a small gravel road hill. It is a bit more secluded, but a ways from the restrooms.
This is another great hidden away campground in the Caddo National Grasslands Wildlife Management Area. It is only 3 miles from Coffee Mill campground, but does not have the parking lot area for lake access. The camp features around 8-10 campsites; established fire rings and picnic tables at each. The toilets are pit toilets. As you can see in one of the photos there is this cool old fireplace, looks like a CCC build, just out in the middle of a sunny grassy area. It was overall a pleasant campground, my only concern would be the bugs if it is hot weather. The campground is close to the lake, and I can see mosquitoes being an issue in the summer.
I found this campground through a US army core website, and the details at that website did not turn out to be very accurate. Both loops at Pat Mayse East Campground showed to have bathrooms, which I assumed meant flush toilets and sinks, since the map also had an icon for vault toilets and this was not used. Both loops actually do have vault toilets and no running water. The campground seems set up pretty well for RVs; there were a lot of rv hookups for water and electric. There are also basic tent sites, picnic tables and metal fire rings. Water spigots are placed throughout so access is not difficult. You have your choice of sunny areas or more forested. Some spots are tightly packed in, but others are on the outside of the loop and seem like they'd be pretty quite. I wasn't overly impressed on the whole.
I am always pleasantly surprised with 'national' organizations' campgrounds. Whether a national forest or like this one, national grasslands, they are always pretty good, and this one is no exception. The campground is small, maybe 12 sites, vault toilets decently cleaned, and multiple water spigots. There was only one other camper, but there is access to the lake at this site with a few cars in the parking lot when we arrived, so you will see people even though it is secluded on the whole. We also saw a lot of horse riders. The sites have picnic tables, fire pits and are well spaced. You basically have your pick of sites so you can choose wooded areas or open without trees.
Visited on a cool but rainy weekend. We had not been to the park before, so we explored their multiple campgrounds prior to deciding on one. We chose Red Oak b/c it had good space for tent camping. Hickory Point was another campground option but lacked tent space, more for RVs. By far the busiest area was Clovis; this is a big fishing area as we were told. All campgrounds had flush toilets, the facilities are older so they aren't great but they suffice. The park as a whole is well taken care of. The main points of attraction are fishing and swimming. It would be great for families with kids - designated beach areas for swimming, large playgrounds, etc… Kayaking and canoeing on the lake is a great alternative to hiking here; they only have one short nature trail within the park.