Just a couple of miles outside of the busy strip malls of Viera/Melbourne is this incredible man-made wetland (it's actually a sewage treatment plant - you can smell the sewage on the road that leads you to the park, but no odor within the park). You can drive around most of the area, but I definitely recommend getting out and walking some of the closed (to car traffic) roads. Most of them are 1 mile loops, and we saw herons (many varieties), egrets, Ibises, a Sandhill Crane, and many other small birds scattered throughout the park. Also saw a few all alligators. We visited in the afternoon (~2pm).
All in all a great break from the city and a good 1 hour diversion