Cairns is the closest gateway to the Great Barrier Reef - the world's largest, most spectacular coral reef system. You can swim, snorkel, dive and sail the World Heritage-listed Great Barrier Reef, a living masterpiece so big it can be seen from outer space.
Here you can discover a whole new underwater world and greet over 6,600 species of flora and fauna, including 1,500 species of fish, 4,000 species of molluscs and 400 yptes of coral.
There are a multitude of tours & cruises activities available, including snorkelling, introductory or certified scuba diving, and live aboard dive courses. If you prefer to stay dry, there are spacious pontoons, semi submersibles and glass bottom vessels that allow you to explore this natural wonder without getting your hair wet!
Poseidon Outer Reef Cruises offers a five star cruise to Australia’s Great Barrier Reef. Visit three spectacular sites on the outer edge of the Agincourt Ribbon Reefs. The crystal-clear waters, beautiful corals and incredible fish life found at the Agincourts, 70kl North East of Port Douglas, enables Poseidon to offer the best possible day boat diving and snorkeling.
For your experience of a lifetime, Quicksilver's wavepiercing catamarans and friendly crew will take you to a reef at the very edge of Australia's Continental Shelf, to an underwater world that is a dazzling kaleidoscope of colour and brilliance... Agincourt Reef, a magnificent ribbon reef where you can experience first hand the magic that is the Great Barrier Reef.
With the choice of three daily departures, this Green Island cruise is perfect for visitors with limited time offering a half day experience, or if you prefer spend all day – up to 7 hours on a tropical island paradise! With a range of exciting optional activities, you can even design your day at your own pace.
Escape into a world of surprises to experience the breathtaking beauty of the Outer Great Barrier Reef. From the comfort of the stable reef activity platform, this is the perfect base for swimmers and non-swimmers to explore. Snorkel and dive, visit the underwater observatory and cruise in a semi-sub, or just relax on the sundeck with a delicious buffet lunch.