This is the Square Grouper: Tiki Bar at Castaway's Mariner in Jupiter, Florida. It's a really fun place to hang out and have a drink (and even a decent hot dog). It's located on the intercoastal waterway and has a perfect view of the Jupiter Lighthouse. You can sit back, relax and watch the boats pass by. There's even a little stage-hut where they have live performances. Unfortunately, no one was playing while we were there.
I just checked out their website and noticed that they have free wifi. Even in an island paradise setting you can still be connected to the outside world! I bet if Oceanic Air Flight 815 went down today, the island would have wifi on it (who knows maybe there is wifi on the island)!