Poseidon Outer Great Barrier Reef Cruise

Poseidon Back of Boat
Poseidon Dive Platform
Intro Dive
Boat & Whale

Located 70km northeast of Port Douglas, the Agincourt Ribbon Reefs is the stunning outer reef destination of this Poseidon Outer Great Barrier Reef Cruise. Offering some of the best diving in Australia, the crystal waters are ideal for exploring the vibrant coral gardens and tropical marine life. This Great Barrier Reef cruise will take you to three separate points on this exciting reef.

The luxury of this high speed, ultra-modern catamaran MV Poseidon III is just one of many special touches that help to make this day tour so memorable. Featuring a spacious air conditioned main saloon, wheelhouse saloon, 8 metre rear deck and spacious sun deck, the sheer speed of this vessel ensures a maximum amount of time to enjoy the reef sites.

This amazing marine environment is fragile, therefore all efforts are undertaken to preserve the beautiful reefs including use of moorings to prevent damage to coral, waste holding tanks to prevent reef pollution and a strictly enforced policy against fishing or collecting. Poseidon Outer Great Barrier Reef Cruises are experienced Eco Tourism operators.

There are 45 different locations and 16 reefs available to visit on this Poseidon Outer Great Barrier Reef Cruise including exclusive access to some of the most northern reef sites, however three sites will be chosen each day dependent on the best conditions.

Poseidon Cruises is currently undergoing maintenance and is unavailable until further notice.

Itinerary Options

Additional charges apply for the below options.

Certified Dive: Includes 2 dives (drift and wall dives) with tanks and weights. Medical requirements apply. Children under 12 years not accepted.


  • 3 different reef sites at the Agincourt Ribbon Reefs
  • Limited passenger numbers with high crew/passenger ratio
  • Personalised service and individual attention


  • Morning & afternoon tea
  • Tropical smorgasbord lunch
  • Dive and snorkel equipment
  • Use of lycra suit


Departs: 8.30am daily from The Reef Marina, Port Douglas
Returns: Approximately 4.15pm

Hotel transfers from Port Douglas accommodation complimentary. Transfers also available from Cairns and northern beaches hotels

Additional Info

Children: 0 - 3 years are free of charge. 4 - 14 years are at child rate
Operated by: Quicksilver Connections