We rented a cabin there for a long weekend for my GF's birthday. She's into camping and the whole outdoors thing...so she's been wanting to check this place out.
Yep, I've been. It's fairly quiet, with a nice river location. If you are lucky you may see some manatees, but usually they are only there during very cold times.
If I remember correctly you can take a boat tour, or rent a canoe or kayak.