We visited the walk-in tent sites for 5 days in late June and had a wonderful time. These sites are out on a peninsula and although the weather brought us 104° for a few days in a row, with the breeze on the peninsula and the lake water, it was manageable and even pleasant. All of the sites are beautiful and there is a cart provided to transport your gear from vehicle to your reserved spot. All sites appeared to gave direct lake access, some with a little steeper hill, but all manageable. The lake is a rock bottom entry so I'd highly advise to bring water shoes. Entering the area, on the right, the sites are on the no wake zone but I felt comfortable with the kids swimming on either side safely. The marina has kayak rentals and also canoes, boat rides, pedal boats, etc. Restrooms/bathhouse is a short walk with the parking lot in between the campsites and building. Each were clean and individual with a toilet, shower, sink combo in each. The camp hosts were so nice and friendly and the rangers were super helpful. The water was clear and you could see small fish swimming below. Firewood, ice, snacks, and bait could all be purchased from the check-in or marina. Hot Spring is a short maybe 15 min drive. Definitely check out Bathhouse Row, the national hot spring park and if you are into Star Wars, get tickets for a VIP tour of Galaxy Connections. Back at Lake Ouachita is the Three Sisters Springs which is a super cool little quick visit and you can fill up your own water bottles or jugs straight from the cold springs. We loved every minute at Lake Ouachita and were so sad to leave.
We camped at Bailey's on Memorial Day weekend and had a blast. The campsite has beautiful views, nearby access to the water, lots of spots for fishing, a swimming area (although rock bottom and no sand) for the kids and clean facilities. The staff were super nice and security or local law enforcement made a few loops. The grounds (lawn, mowing, weeds, etc) could use some help but overall we'd be back. Note, there is no firewood or ice for sale on site. No worries for us but others may like to know.
The playground at the lake is perfect for Littles. The beach had a lot of debris washed up, however we were there in late winter. Part of the park was closed due to our time of visit so I can't comment on the amenities. Th trails are clearly marked and fun little streams for the kids to play in. We'll visit again.