Immersed in the northern frontier of the famous Great Barrier Reef, enjoy a full-day snorkelling and sailing adventure aboard a luxury catamaran. Swim through the flawless blue waters of Mackay Coral Cay and admire the kaleidoscopic array of aquatic creatures who live in this unspoilt section of the outer reef. Back onboard enjoy a fabulous tropical buffet lunch and views of the underwater world through the glass bottom boat, before continuing on to snorkel at your leisure before you set sail back to Port Douglas.