About Quicksilver Outer Barrier Reef

Agincourt Ribon Reef Cruise

Agincourt Ribon Reef Cruise

For your experience of a lifetime,Quicksilver takes you to Agincourt Reef, a magnificent ribbon reef at the very edge of Australia's Continental Shelf, where you can snorkel, dive or stay dry and explore the stunning reef from the comfort of a Quicksilver semi-sub.

Watch the fish feeding from Quicksilver's unique underwater viewing platform and underwater observatory, or fly in a helicopter over the reef.


Included in your day

Included in your day
  • Morning and afternoon teas on board.
  • Reef presentation by marine biologist.
  • Hot and cold tropical smorgasbord lunch.
  • All snorkelling equipment provided.
  • Return Wavepiercer cruise from Port Douglas
  • Qualified snorkelling safety officers on hand
  • Underwater observatory fish & coral viewing
  • Coral viewing by semi-submersible vessels
  • Fish feeding [conducted by crew]

The Platform at Agincourt Reef Site

The Platform at Agincourt Reef Site

Floating like an island in a coral sea the platforms have tables for you to enjoy lunch, undercover seating, fresh water showers and change rooms to allow you to enjoy your day. There is also a water powered lift to allow easy access for all passengers.


Semi Submersible Coral Viewing

Semi Submersible Coral Viewing

If you would like to stay dry, then you can explore the stunning reef from the comfort of a Quicksilver sub. The semi submersibles cruise slowly through the colourful coral gardens giving passengers the opportunity to experience a snorkellers-eye view of the marine life.

The semi-sub experience takes approximately twenty-five minutes and includes an informed commentary on the marine life observed during the journey and an overview of the wonders of the Great Barrier Reef. Semi-subs depart every fifteen minutes from the rear of the platform.


Underwater Observatory

Underwater Observatory

You can also see the coral and watch the fish feeding from Quicksilver's unique viewing platform and underwater observatory located directly in front of the platform. From here, you can also view "first time" divers taking part in introductory dives and snorkellers.




Snorkelling is one of the best ways to view the incredible underwater world of the Great Barrier Reef, and Quicksilver's friendly staff are on hand to show you how. On your way out to Agincourt Reef you can view an instructional video on how to snorkel to teach you the right techniques.

Upon reaching the outer reef, you can obtain your snorkelling equipment from the storage containers on the platform. Lycra stinger suits are also available to hire. Fish feeding takes place from the platform so you can view the marine life up close.

If you would like to learn a little more about the Great Barrier Reef whilst snorkelling, you may like to try one of the optional Snorkelling Expeditions with a qualified Marine Biologist. This is at an additional cost.


Optional Extras

Optional Extras
Optional Extras: 
  • Certified diving
  • Introductory diving
  • Oceanwalker "Helmet" Diving
  • Marine Biologist guided snorkel expedition 
  • Reef Scenic Helicopter flights

What to Bring

What to Bring
  • Your camera.
  • Swimming costume and beach towel.
  • Hat, sunscreen and shirt for sun protection.
  • Cash for drinks at the bar.
  • Credit cards for shopping and optional tours.
  • Underwater cameras available for purchase.


Quicksilver Outer Barrier Reef Reviews


Chynna Burton

I couldn't not speak highly enough of the crew Quicksilver cruises have representing their company. Each team member was so kind and were so cruisey (pardon the pun) which made the whole day so relaxing. The reef and the animals were gorgeous and i highly highly recommend bringing or hiring an underwater camera, the shots I took will last me a lifetime and I'm so glad I was able to capture the memories I did! I had the best day out on the water. The tour has made me so excited to get back to Cairns and jump on another boat to see more of the beautiful thing we call The Great Barrier Reef. The staff all had a great appreciation for the reef and their knowledge was phenomenal but would loved to see them use that knowledge to educate people on how we can help stop the bleaching of the reef. Lunch was beautiful and so was the island. What an incredible experience, couldn't speak more highly of the crew on board and I cannot wait to get home and recommend it to everyone I know.


Rachael Waldinger

Our family of four had a great day out on the reef with quicksilver. All of the staff are friendly, helpful and very knowledgeable. The facilities are great for swimmers and non swimmers alike. The lunch was fresh and perfect for a day out on the water. Our 4 and 6 year old boys loved the semi-submersible cruise as well as the introductory snorkel tour with Jade. Thank you so much for a wonderful day!!

Quicksilver Outer Barrier Reef

Direct Contact Info

Hours: Please call for opening hours

Crystalbrook Marina
Port Douglas

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