And I can't speak for conjunctive, but I have been to every park within an hour (or more) from me. Honestly, they have alot of the same things - the same spiders, fauna, and swampy/muddy ground. It gets old quickly, especially (as conjunctive says) in the heat and humidity, not to mention the mosquitoes. Alligators sound so exciting to photograph and to see, when in reality, they just sit there. There are only so many shots of an alligator you can take before being bored silly.
Like I said above, I live on the water, and while it's great for quality of life, it's pretty lame from a photographic standpoint. I have the same dopey bird that lives in the tree by my dock, and every few days a sea otter comes up on my dock and takes a nasty, watery dump. Seriously.
The beaches are good for a bit, but again, it's always the same thing. Unless I want to start becoming a dirty old man taking pictures of girls in bikinis with a 500mm, it's pretty much all the same.
Yes, there are moments that are interesting, but those are few and far between.
Theme parks? Yeah, they're great, but it's not like you're going to go there all the time, even if you live by them. They cost a fortune to go and have a good time.
I used to live in the PacNW (Vancouver, WA/Portland, OR, Spokane, WA, Sandpoint, ID). Much, much more to do there on a daily basis. 30 miles in any direction gives you something completely different. Florida, not so much. And before someone says it, my wife loves it here - happy wife, happy life.
Photographically speaking, Florida is a great place to vacation, but not for an ongoing photographic endeavor. And the Everglades are 5 hours away, and the Keys are 7.
What I do to try and keep it 'fresh' is give myself an assignment. My current assignment? Photograph every church steeple in the city of St Petersburg and surrounding small towns. That's what I'd suggest to the OP - pick something weird, and make it an assignment. Someone here is doing a junkyard series, I've done an alphabet series (pics of individual letters around the area), and there are tons more. Just pick something (every dog that comes to a park can be one), and do it. It keeps you busy, and makes you think.