I second Paynes Prairie! One of my favorite treks out there is LaChua trail on the north end of the preserve. If you're not comfortable around gators, and during the wet season there will be MANY and they will be CLOSE, I'd avoid continuing on this trail once you reach the sink. The whole preserve is just loaded with wildlife and you can expect to find a multitude of herp species, birds galore, wild horses, bison and feral hogs amongst other creatures.

Devil's Millhopper is another pretty cool spot. Though not nearly as vast as the prairie it's something you should visit at least once and be sure to take the boardwalk down to the bottom of the sinkhole.

There are also plenty of creeks in the area that can be good for spotting wildlife, definitely worth checking out.