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Silversonic and Calypso are both superb purpose-built dive and snorkel catamarans that run daily trips to the outer reef. Silversonic goes to the Agincourt Reefs.  And Calypso goes to the Opal Reef Complex and to the southern section of the Agincourt Reefs.


Both catamarans visit 3 different sites in a day.  Silversonic and Calypso will visit 3 sites and spend approximately 1 hour at each site. On both vessels you still can complete up to 3 dives in a day.

The more dangerous stingers all tend to stay near the coast line, sightings of stingers on the outer reef are very few and far between. However, between the months of November to May, we wear full-length stinger-suits for extra protection. The great part about them is they also provide SPF 50, which means you don’t need to lather your body in sun cream.

Diving is considered an extremely safe sport and has a much better track record for injury than many other adventure sports. However, certain conditions can raise risks with diving, particularly if you suffer from certain respiratory or circulatory conditions. If you do, it does not necessarily mean that you cannot dive, but you will need to see a doctor to get medical clearance and ensure diving poses no risk to your health.


Please see our Diving Medical page for further information:


Please also see our COVID safety plan.

If you haven’t been diving for 2+ years then we would usually recommend you take a refresher prior to diving.


We can offer a 2-3 hour pool refresher session for $250 per person, minimum 2 people.


Alternatively, if you book a private Blue Dive guide for your Great Barrier Reef diving then we can include a complimentary onboard refresher and skills practice on the first dive of the day.

There are no restrictions on flying before scuba diving.


After scuba diving current guidelines say that you should not go to altitude (fly) within 12 hours of completing a single dive, or 24 hours when doing multiple dives. These rules also apply to skydiving, helicopter rides and hot air ballooning after diving.


If you have less than 24 hours between diving and flying you will only be permitted to complete the first dive  of the day.


Most of our diving activities conclude by 3pm, this means you can safely fly out of Cairns airport anytime after Rpm the following day.

All of the Great Barrier Reef has been impacted by coral bleaching over the last few years, any dive operators telling you otherwise are not being honest with their customers.


Fortunately, all our diving takes place on the outer reef, where the impact of coral bleaching has not been as destructive, and we still dive beautiful, healthy dive sites every day. We estimate that about 10% of the coral cover on the Agincourt reefs has been affected by the bleaching and have been heartened over the last 12 months to see new coral growth in many places.


Please contact us with further questions if you are hesitant to dive the Great Barrier Reef because of the coral bleaching. We are happy to answer your questions and provide you with the latest information.

The Agincourt reefs are located over 25km from the shore and are not usually affected by rainfall.


Coastal dive sites, inshore reefs and islands are often affected by run-off and suffer a drop in visibility after rainfall, on the outer reef we don’t have to worry about this.

Complimentary photographs are included for certified divers diving with a private Blue Dive guide. If there are any introductory divers or open water dive students as part of your private group we cannot include photographs as the instructor is not permitted to carry a camera.


For introductory divers and group certified divers, photographs are available for purchase from Poseidon’s or AquaQuest’s onboard photographers.


Camera rental onboard the boats is also available. This cannot be booked in advance, all you need to do is chat with the crew on the day.

Yes, prescription lenses between -1.50 and -7.0  are available, however, please note that there are only a limited number of prescription masks available. We cannot guarantee your exact prescription will be available on the day.

Yes, all equipment is included in the price and provided onboard the boat. Our divers are provided with a BCD, regulator including octopus, dive computer, mask, snorkel, fins, wetsuit and/or stinger suit.



There is no need to visit us prior to your day of diving to try on gear. All gear is stored on the boat and we have a wide range of sizes.

“Best and most pristine examples of coral on the Great Barrier Reef” (Port Douglas reefs) – Source: The Great Barrier Reef Marine Park Authority recent report.