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Explore the wonders of the outer Great Barrier Reef in five star luxury with Poseidon Outer Reef Cruises. Departing from Port Douglas, the cruise takes passengers to the far reaches of the Agincourt Ribbon Reefs, where stops at three separate locations will be made, each as amazing as the last. Only a limited number of passengers are allowed on board Poseidon, guaranteeing you the most attentive service.

Situated 70km from Port Douglas, the Agincourt Ribbon Reefs boast turquoise waters with excellent visibility, intricate networks of coral reefs and rich and varied marine life. Participate in up to three dives whether you are a certified diver or simply looking for an introduction with an experienced guide. Snorkellers and swimmers will relish the serene lagoons and awe-inspiring drop offs teeming with corals and flitting fish. Gain a better understanding of the coral reefs by attending a Reef Interpretation Talk, which will add to your knowledge of the marine ecosystem, and which will be followed by a snorkel tour allowing you to observe first hand the fascinating creatures you have just learned about.

Whether you are a regular water baby or a newbie who has never dived or snorkelled before, the experienced crew members on board the Poseidon will see to it that you are taken care of and equipped with the knowledge and skills that will enhance your experience in this beautiful part of the world.


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.
from $262