Take off for all things tropical—this catamaran cruise to idyllic Low Isles combines postcard-perfect beach scenery with an afternoon itinerary of laid back water activities. Sail, snorkel, and stroll the soft sands—the unsurpassed beauty of Great Barrier Reef beckons and awaits you.

Board the Wavedancer, a 98-foot (30-m) luxury sailing catamaran, and sip a steaming cup of tea or coffee on the expansive sunny deck while your crew briefs you on best snorkeling practices and the vibrant marine life you’re likely encounter.

Sail for the Low Isles and drop anchor off the coral cay's historic shore. Upon being shuttled to land, strap on some flippers and seize the day—the crystal-clear, calm lagoon waters are ideal for snorkeling. Join your expert naturalists for a guided swim, practice laps solo, or opt for a drier introduction to life under the sea via a glass-bottomed boat tour.

Whether above water or under, check out the vast and varied species of delicate coral, technicolor fish, and the occasional shy sea turtle. Come mid-day, head to the top deck, and feast on a tropical buffet lunch. Post meal, a marine biologist takes you onshore for a fascinating walk along the waves.

As you hear about the unique flora and fauna of this unspoiled island, scan the spectacular sights one last time and re-board your boat for a relaxed sail back to port.