Nice campground, plenty of trees for shade and about a mile inland from the beach so it reduces wind dramatically. There are many rv spaces and they're tight. The grounds were fairly to very clean. WiFi is advertised but has spotty uptime. Cable works great. Bathrooms need remodeling; not all toilets were working properly; they were working on that as we left. Lots of long term people staying for the winter (probably 60%). In March the campground was 90%+ full. There are kids playing in the streets. Bikes welcome! The campground did get pretty quiet just after dark before 9:00pm. It's about a 3 mile bike ride to town, perhaps a little longer. There's an ocean breeze that you'll need to contend with. It's about 1 mile from the beach and a fishing pier. Jekyll has wonderful paved bike trails all over. We will be back next year, perhaps in April when it gets a little warmer. If the bathrooms were in better shape this would be a 9 or 10 rating.
Rustic park. Sites are shaded sand with a sandy patio area. Most sites are pretty difficult to get an RV in and out of and you'll probably need a spotter to back in. Playground in center of camping loop was nice and there were newer bathhouses that were very clean and well maintained. O'Leno has nice amenities in park--suspension bridge, museum, bike trails, hiking trails, swimming area, 17 cabins (that are mostly simple bunk houses) and rec/dining hall for groups, bike rentals, canoe rentals, fire wood for sale, Junior Ranger program, and several ranger programs. If you're looking for a very peaceful campsite to hike/bike from, this is nice.
Large campsites not terribly far from the bathroom area. Has a childrens playground. Great for walking or riding bikes through nature. Lovely campground; somewhat towards the primitive side. The bathrooms were very clean and well kept. All in all a very quiet campground. The road coming in is very tight (trees all around).