We were pleasantly surprised- thought we were going out on one of the shuttles w/ lots of people, wound up going out on a small boat w/ 6 of us! John was our captain, really nice. We were booking it across the Gulf to Shell Island! Got to spend about 1 1/2 hrs there. While we were out snorkeling, a manatee came right by the boat. On the trip back we saw 3 dolphins in John's Pass area.