The island is only 1650 acres. I kayaked around it. It's 10 miles. You'll see lots of birds, gators, snakes (if you're lucky) and manatees swimming around you if it's cooler at night.
The tent sights are somewhat close but are nice and restrooms and showers are close. There are water spigots that has good tasting portable water! Mosquitos are present during the warmer months.
The cabins are rustic. Some sleep 4 and others 6. They all have a screened porch with sealing fans inside and out.
They will give you one ride to and one from your camp site which is .4 of a mile from the Ranger Station. The picnic and playground area is surround on three sides by water (The St.Johns River) two Great Blue Herons are nesting on the edge of the play ground now.
The little museum is good. Lots of stuff for kids to see.
Folks fish from the banks.
The ferry is a pontoon boat...that still makes it a ferry!
The entrance and ferry ride is free but they do take donations.
There is an island store and a coke machine.
There is over 5 miles of trails. Some are service roads. The nature trail is 1.5 miles one way then the same distance back on the same trail. It's not a loop but it all looks different on the way back :-)
When you get to the end of the nature walk you'll be on top of a very large Indian mound (midden) and you'll see quite possibly the largest live oak tree ever!!
They rent canoes and kayaks and if you arrive by boat they have a marina to park in.
It's a small quite island with not too much to do but it's quiet and peaceful and worth the visit!