The River Center – a mini museum (only took an hour or so to read everything!) with information on the Loxahatchee River and environs.
Even on a rainy day, the park, which is on an island in the Intracoastal Waterway, was beautiful.
We decided to downsize to save on charcoal.  The packaging said it would fit eight burgers, but I think two (maybe three) is really the limit.  Nevertheless, it worked and lunch was delicious.