You need to book this place way in advance, within minutes of these cabins being available for reservation. Reserve even if you don't know you'll be able to go; cancellation is like $17 or something.
Cell reception is spotty with At&T.
Beach is a pretty hilly 10 min. hike or so - so you will need to be organized and not be hand carrying big coolers; you'll need backpack. But not many people make the hike; you'll often have the beach to yourselves.
Lots of wildlife around - deer, armadillos, etc.
If wind is blowing from the north (shore toward beach, from behind you if you are looking at the gulf) the beach may have nasty biting flies, so drive 45 mins and go to St. George beach. Usually wind comes off the gulf though and keeps the bugs at bay.
We love Cabin #7.Cabin 8 has steps down to the bay; all others are a straight walk out.
Downstairs "beds" are not really suitable for adults; I wouldn't try to put more than 2 adults in a cabin and expect much sleep.
Bring kayaks and SUPs! You will be right on the bay, and St. Joe bay is great paddling with tons of fish and wildlife. We've seen manta rays, tons of cownose rays, huge schools of Jack Crevalle, turtles, and caught many species of fish…redfish, snook, seatrout, etc. Even saw an alligator way out at the end of the peninsula once!
Only things to add from the previous reviews:
Dry Falls is quite close by - a walk behind waterfall. Bust Your Butt falls is a fun sliding rock in certain conditions, about 5 mins. downstream.
Some sites are reserveable, but often you can just drive in a claim a spot.
Bear proof garbage cans are on site; people often report seeing them; I haven't here. Don't leave your food out - I leave it in my car in a cooler.
Super nice rangers.
If you want to go out, bring nice clothes for Highlands (about 5 min. drive) and clean up; it's a wealthy enclave.
Trout fishing in the Cullasaja is pretty tough. Cliffside Lake just up the hill from the campground has lots of big and pretty dumb stocked trout and some giant uncatchable bass. For the trout, get your line way out there and fish with bait under a bobber - all of the fish are in the current in the middle of the lake at least 10-15 feet down.
Best nearby hikes are Whiteside Mountain, Glen Falls, and Chattooga Narrows trails (all shortish half day hikes).
Also a popular sliding rock on Whiteside Cove Rd where the Chattooga River crosses it.
Occasionally the campground is a popular stopping point for groups of motorcyclists to stop and shower; sometimes late at night.
Enjoy---I always do!