I live 5 minutes from Choccolocco Mountain. It's all around a great park, but piss poor maps and trail markings: if you're unsure of a trail or obstacle, walk it first. A buddy of mine would up going down a "green" trail that wound up being a "red" trail, one that required full cage and helmet and lockers, in a TJ with 2" lift and 33's. Once he got started, the trail was so steep down and off camber he had no choice but to continue down. It was a fun ride haha.
It's $20 per vehicle and $5 per passenger to get in last time I rode.
For the most part, 33's or 35's and good judgement, you can go almost anywhere in the park. Some obstacles are challenging, but not impossible.
There are a few dead end trails or bypasses between trails cut out and used by Southern Rock Racers and are intense. I steer clear of those.
Hit me up when you go, I'd love to go and ride.
Also several great places in Jacksonville to stop and eat. There's a new craft brewery on the town square that I've heard is good as well.
PM me if you'd like to meet up and ride when you're in town.