Choose which time works best for your schedule and make your way to the Curacao Sea Aquarium, just outside central Willemstad. Meet the aquarium's staff members for a safety briefing and introduction, then slip on your provided snorkeling gear.
Dive into the natural lagoon with your small group of 6 people or less and watch as the stingrays, tropical fish and grouper swim around you. The staff will provide food with which you can handfeed the gentle animals, which allows you to interact and get a close look at them. Nurse sharks and sea turtles swim on the other side of a glass wall, and you can feed them too by pushing food through small tubes in the glass.
Remain in the water for an hour, swimming in the peaceful lagoon and interacting with the animals. After your snorkeling adventure is over, feel free to explore the rest of its attractions and exhibits.