I am not too familiar with your particular area, but when I was stationed in Charleston, I used to ride in Francis Marion (spelling) state forest. It was $5 a day I think, and there was like 80 some miles of trails there as I recall. It has been 6 years though, so things may have changed.
2008 700xx; Power Bomb header with power core 4 exhaust, Power Programmer III, pro armor nerfs, prm products control front and rear bumpers and full skid, 10" ITP rears, ITP Baja's fronts, RZR 2's all the way around, Uni filter, 13t sprocket, CCP steering Damper, DS450 shock swap, Dual Gasser Throttle, bar risers and Moose barkBusters. 730XX kit plus other engine mods!