Hilton Head Marina and RV resort is a fantastic place. They have plenty of sites to accomodate a 39' rig. They will put you in a golf cart and you can cruise around a pick the site you like from the list of available sites.
There are plenty of beaches within 15-30 minutes.
Savannah is about 45 minutes. Lots of Bike trails and things to do on the island
Hilton head has been called the San Diego of the east coast.
It's a bit upscale an more adult friendly vs.being kid friendly. Lots of golfing and tennis, restaurants and shopping.
19'Duramax w/hips,12'Open Range,Titan Disc Brake
BD3,RV safepower,22" Blackstone
Ox Bedsaver,RV760 w/BC20,Glow Steps, Enduraplas25,Pedego
BakFlip,RVLock,5500 Onan LP,Prog.50A surge,Hughes autoformer
Porta Bote 8.0 Nissan,Sailun S637
Correct Trax,Splendide