Damn Gary my buddy and his wife have a place on Big Pine. Summer afternoons they lay out in the canal on floats with a cooler and cocktails. I can`t imagine their reaction if they saw a Big dorsal fin cruising down the canal !That was about a 7-pound snook cruising about three feet below looking for an easy meal. I've also seen a dozen squid, some shrimp, a few sea horses, lots of snappers, moonfish, and sharks ranging 4 to 10 feet, mostly nurse sharks, but the larger ones were bull sharks. I WOULD NOT jump into the canal for a short swim. Bull sharks can be very aggressive and they scare the Hell out of me.