Experience one of the Seven Natural Wonders of the World on this epic excursion. Board a swift catamaran for the 1.5-hour transfer to a pontoon at the Great Barrier Reef. Reaching a floating pontoon, step aboard to explore the biggest single structure made by living organisms for approximately 4 hours. Engage in a wide range of activities on the outer reef that include diving, snorkeling, a tour on a glass-bottom boat that glides over the world-famous reef, and a walk through an underwater viewing chamber. After all the exploring, recharge with a delectable onboard buffet lunch.