Once your cruise ship docks in Nassau, meet your guide at the port for transfer to the starting point of your marine adventure.
Board a boat with an experienced captain, then travel to some of the calmest, clearest locations for the best chance at excellent snorkeling. Get a safety orientation from your guide and get fitted for your snorkel gear. Don your provided mask, snorkel and fins and jump in. Float among schools of tropical fish, see live coral and other marine life.
If the conditions are right, your second stop will be to get an up close and personal encounter with the sea's alpha predator: sharks. Follow your guide into the water to view the sharks swimming calmly below you. You can also stay on the boat to view the sharks in complete safety.
At the conclusion of your 5-hour shore excursion, you'll be dropped off back at the cruise ship port.