Island Ferry's Dolphin-Snorkeling Cruise takes you snorkeling by boat to Shell Key, and to see dolphins at the same time! See dolphins in their natural habitat, along with manatees, rays, and wild birds. Go snorkeling and shelling on Shell Key Preserve, where you'll find hermit crabs, conchs, rays, horseshoe crabs, and more. ​ Island Ferry is not a drop-off service, but rather the boat stays at Shell Key with you for the entire time. You can take a break from snorkeling and shelling, and sit on our shaded boats with a cold drink. And while you and your family are in the water, the Island Ferry crew stands watch on lifeguard duty. So we keep everyone safe! We provide the snorkel gear and the floating noodles.