Are there certain areas for camping?

I believe this park offers primitive camping only so if you like Glamping then you could have a fun day trip, lol need to edit appears that they have 30 campsites accessible to electric and RV sites. But I still believe primitive camping is the best 😅

Yes. Check out the Texas Parks and Wildlife webpage for the map. Many of their pars have primitive camp sites, RV sites, or sites with electric and water hook ups. It varies from park to park.

Yes campsites where you can either tent csmp or RV, and backcountry primitive that you have to hike to them.

Lost Maples has an RV accessible area near the entrance, and 5-6 back country primitive areas.