Welcome to our Summer issue of Quickies

It's been a huge year for our engineering teams including major refits for Silversonic (see more in this issue) and Reef Adventure with new sustainable fuel compliant engines. That's on top of the annual program of refits and behind the scenes work, ensuring our fleet of 13 Australian-built touring and liveaboard vessels are in peak condition for our customers to enjoy a world-class, safe and environmentally responsible experience on the Great Barrier Reef.

Next year the multi-million dollar investment and sustainability journey continues with dive boats Silverswift and Pro Dive Cairns' Scubapro II to undergo repowering – all part of future-proofing our fleet for years to come.

With Quicksilver's Port Douglas outer reef fleet now transitioned to sustainable fuel-ready engines, the latest cab (or cat!) off the rank is Great Adventures’ 33 metre passenger catamaran Reef Adventure. At a cost of $1.4 million, Reef Adventure’s refit focused on the major propulsion, navigation and comfort upgrades to enhance the vessel performance and passenger experience.

She is now purring back into service with a new Caterpillar propulsion system. For the technically inclined, this includes two Caterpillar C32 Heavy Duty “B” Rated engines (1300 BHP) and two Caterpillar C4.4 Marine Gensets (86 kVA).

Passenger and aesthetic improvements included the complete replacement of the upper deck seating, extensive exterior paint work and renewal of outdoor floor coatings.

Great Adventures' Reef Adventure operates out of Cairns to Green Island and the Outer Reef.

This short video captures the amazing and mesmerising natural phenomenon of coral spawning.

Right on cue with the sun setting, water temperature and lunar conditions just right, Agincourt Reef set about creating new generations of corals for our reefs. It was especially wonderful to see the innovative reef restoration research patch, installed back in 2018, continue to thrive and spawn as it has done now over consecutive years. This year is extra special as we’re expecting not one, but two mass coral spawning events on the Great Barrier Reef, with the second expected in mid December, providing an extra boost and resilience for our magnificent reefs.

Thanks to Jesse Oberholzer, Indepth Video & Photography, for capturing this spectacular underwater symphony of coral spawning and some night life at Quicksilver’s Agincourt Reef pontoon.

What is Coral Spawning? While corals have a year-round form of asexual reproduction where coral polyps can divide to become two separate but identical coral polyps, spawning takes place externally with mass fertilisation release into the ocean.

You might hear it referred to as Sex on the Reef, or even an upsidedown snow storm! Coral spawning is an annual mass reproductive event where corals release egg and sperm bundles into the ocean for external fertilisation. This phenomenon was first witnessed on the GBR by marine biologists in 1982. It is vital to the Reef’s continual adaptation and long term survival.

It usually occurs 2-6 days after the full moon in November or December. For spawning to occur, a variety of factors come in to play. We know the moon cycle and specific water temperatures (greater than 26 degrees celcius) play a role, but also tides, salinity levels and day length can also affect the timing. Spawning usually happens 2 - 3 hours after sunset, which scientists believe is timed to ensure most of the plankton feeders are asleep, creating a greater chance of pollination.

Both Pro Dive Cairns and Quicksilver Dive’s Port Douglas Training Centre were proudly recognised by PADI, the world’s largest dive training organisation, in their annual regional awards. 

Pro Dive Cairns was awarded “Outstanding Contribution to the Dive Industry”, while Quicksilver Dive was awarded for “Outstanding Contribution to Entry Level Diver Training”.

These awards are reserved for select PADI Retail and Resort Association Members in each region who have demonstrated exceptional contributions to the industry, with just 10 dive centres across Australia acknowledged this year.

“This is fantastic recognition of both the Pro Dive Cairns and Quicksilver Dive teams' dedication and expertise,” said Tony Baker, Managing Director of the Quicksilver Group. “Their consistent delivery of high-quality diver training is commendable.”

Quicksilver Dive’s award especially highlights their exceptional work with entry-level divers - helping students begin their underwater journeys and diving adventures at the Great Barrier Reef.

Pro Dive Cairns’ industry recognition follows another major milestone earlier this year, becoming the first dive operator in Australia to certify 190,000 PADI divers.

“We are incredibly proud of these achievements. The fact that so many people from around the world have chosen Pro Dive Cairns to learn to dive is fantastic and reflects the commitment of the management and staff since 1983 to provide the very best possible dive education and scuba adventures.”

Quicksilver Dive is also the only PADI Adaptive Services Facility in Queensland, opening up the world of scuba to people with special needs with an inclusive, safe and fun learning environment.

After nearly three months out of the water, our Port Douglas-based dive and snorkel catamaran Silversonic has unveiled a striking new look and new generation engines following a $1.66 million refit.

The 29 metre catamaran re-entered service in October shining with a sleek aluminium finish and powered by two new Rolls-Royce mtu 2000 Series engines, compliant with sustainable marine fuels.

Quicksilver Group Managing Director Tony Baker said the transformation reflects both innovation and long-term commitment to sustainable operations. 

“This refit was a major undertaking and a credit to our incredible Engineering team and local marine contractors. Silversonic not only looks fantastic but will also operate more efficiently, with reduced emissions and improved performance - helping future-proof our fleet for years to come.”

The major exterior makeover - stripped back to shining aluminium, is a nod to her name and Quicksilver’s signature flagship wavepiercing catamarans.

This latest investment completes the transition of Quicksilver’s Port Douglas outer reef fleet to sustainable fuel-ready engines, reinforcing the company’s leading role in environmentally responsible marine tourism on the Great Barrier Reef.

Quicksilver General Manager of Operations Travis Clarke said the upgraded engines also bring operational benefits.

“Our vessels Quicksilver VIII, Quicksilver V, Silversonic and Poseidon now share the same engine series, improving efficiency and allowing easier maintenance across the fleet. It’s a win for sustainability and for smart operations.”

Designed for adventure and comfort, Silversonic carries up to 90 guests (despite capacity for over 130) to explore three spectacular Agincourt ribbon reef sites daily. Two air-conditioned decks, a spacious dive platform, sun decks and a state-of-the-art ride control system ensure guests enjoy a smooth and unforgettable reef experience.

Located on the edge of Australia’s Continental Shelf, the world-renowned Agincourt ribbon reefs are celebrated for their crystal-clear waters, spectacular corals and abundant marine life, offering some of the very best day boat diving and snorkelling experiences on the Great Barrier Reef. Silversonic has exclusive permits to visit over 35 World Heritage Agincourt reef sites, as well as a permit to swim with minke whales if encountered. 

About the new engines: Silversonic was repowered with two new generation Rolls Royce mtu 2000 series commercial marine engines (10V2000M72) - certified for HVO (Hydrotreated Vegetable Oil) and other synthetically produced diesel fuels, and new ZF marine gearboxes.  The repowering also included mtu’s Blue Vision monitoring and control system, and panels. This advanced system allows remote monitoring and access from a mobile device or connected device onshore, or anywhere in the world, to see real time stats on the engines as they operate.

Vision: Gavin Hardy

Moving innovative coral reef restoration interventions, developed through years of research, from the "proof of concept" stage to large-scale, operational field trials on the Great Barrier Reef is the goal of one of the collaborative partnerships our Reef Biosearch marine biologists are involved in.

For the second year, the team will be working alongside Australian Institute of Marine Science (AIMS) scientists to deploy inflatable larval pools to collect, and subsequently release coral larvae and young corals.

Timed to take place with the (second) December mass coral spawning event, the team will be collecting spawn for this innovative coral larval seeding technique, sometimes known as Coral IVF.  

This is part of AIMS Pilot Deployments Program (PDP), which is the operational testing component of the wider Reef Restoration and Adaptation Program (RRAP).

“Working alongside AIMS researchers is a wonderful opportunity for Quicksilver Group to become an active partner in this collaborative approach to reef restoration,” said Phil Coulthard, Quicksilver Group Environment and Compliance Manager.

“This collaboration is vital for transitioning scientific discoveries into practical, industry-supported solutions to protect the Reef from the effects of climate change.

Over the next 3 years of the program, we will grow the capacity to deliver large-scale deployment of these techniques at a number of sites through the Cairns and Port Douglas section of the GBR. This will not only increase the health and resilience of our own reef sites, but also help to position the tourism industry as world leaders in these types of interventions.

“This Reef Restoration and Adaptation Program is definitely an ambitious one. A critical objective is capacity building, which involves activating the existing infrastructure and expertise of commercial marine operators like the Quicksilver Group, and empowering and training local industries including Traditional Owners to become skilled reef restoration practitioners."

For many people, scuba diving the Great Barrier Reef sits high on the bucket list. But not everyone feels confident in the water, and that’s perfectly okay. The good news? You don’t need to be a swimmer to enjoy an unforgettable underwater adventure on the Reef.

We have three fantastic “helmet dive” experiences that allow non-swimmers to explore coral gardens and meet colourful marine life up close. You can even wear your glasses inside the helmet for these underwater tours!

Seawalker Green Island Helmet Dive - Great Adventures

A short 3 minute boat ride takes you to Seawalker’s platform moored in the shallow reef environment off Green Island. Seawalker Green Island is unique in that you actually walk on the sea floor around a specially selected coral bommie. You will descend to a maximum depth of about 5 metres (16 ft). 

The helmet sits comfortably on your shoulders while keeping your head dry. There is no equipment to operate and two instructors are with you at all times.  

Oceanwalker Helmet Dive – Quicksilver Cruises, Agincourt Reef 

At Quicksilver’s iconic outer reef platform, the Oceanwalker experience takes place just metres from a vibrant coral bommie. Guests walk down a purpose-built ramp to an underwater viewing platform, descending to around 4.5 metres. 

Like Seawalker Green Island’s helmet dive, you’ll experience the feeling of scuba diving but instead are wearing a helmet and breathing normally through your nose or mouth. Glasses and hair stay dry, and your dive guides remain close throughout your reef walk. 

Scuba Doo Underwater Scooter – Great Adventures, Moore Reef 

This very groovy yellow underwater scooter operates exclusively at Great Adventures Outer Reef platform and is ideal for non-swimmers too. You can get all James Bond and cruise at a walking pace speed (2.5 knots) all while seated comfortably beneath a clear 180-degree viewing dome. You’re accompanied by a professional guide as they take you on this very unique underwater tour to a maximum depth of 4 metres. This is the only place in Australia where you can experience Scuba Doo.

• All of these activities can be pre-booked.
• Like all diving activities, medical conditions apply. The minimum age for these helmet dive options is 12 years and height restrictions may apply.
• Due to the shallow depth, it is possible to undertake a helicopter scenic flight after a helmet dive however no commercial flight should be undertaken for at least 24 hours.

In a world where wheelhouses have long been filled mostly by men, Great Adventures’ skipper Cheylsea Molloy is quietly and confidently changing the tide.

Just three and a half years after joining the company, Cheylsea has carved out a remarkable path, starting as a deckhand to now captaining for one of the region’s most iconic reef fleets.

From Deckie to the Helm

“Growing up I didn’t know this was going to be my career path however it was bound to happen", said Cheylsea. “My father ran small commercial tours and I was brought up around the ocean, learning small tricks of the trade along the way.

"All I knew was that I loved driving boats - I would basically steal the helm from my dad as soon as I could!”

At 18 she joined the industry officially, beginning as a deckhand with her Coxswain’s ticket already under her belt. The climb from there has been steady and determined: Master < 24m NC (Near Costal), MED2, First Mate, and then, with enough sea time and plenty of drive, her Master < 45m NC ticket, all by the age of 22.

Today, Cheylsea splits her duties between the roles of Skipper and Mate for Great Adventures and each day, takes pride in taking hundreds of visitors from all over the world to see the majesty of the Great Barrier Reef.

Sunrises, Sea Life & Standout Moments

“Some of my most memorable moments at the helm for Great Adventures include early morning ship-to-shore cruise ship transfers and cruising up the coast watching the sunrise and set. I enjoy seeing all the different wildlife, both big and small, and sharing these moments with our passengers from all around the world.”

Weathering the Challenges

Of course, it wouldn’t be life without challenges. “There are many challenges that I’ve had to overcome throughout my journey but the most common one would be the weather. Rough conditions and low visibility can be a challenge while trying to make sure each passenger stays safe and keeping the day enjoyable for them.

“It’s a responsibility that demands confidence, consistency and calm - qualities Cheylsea has cultivated to ensure each day runs smoothly," said Brian Cave, Great Adventures General Manager Operations.

Cheylsea may not see herself as a trailblazer, but that’s exactly what she is - a young woman forging a successful career in a role still largely dominated by men, proving that skill, passion and determination are what truly matter on the water.”

An extreme low tide of just 0.2 metres combined with an innovative drone mapping research project has given us a unique opportunity to see the stunning Agincourt Reef 3 from a new perspective. The extraordinary low tide vision has also highlighted a thriving and vital ecosystem.

The innovative research utilising aerial drone technology for mapping, monitoring and 3D modelling represents a significant step forward in Great Barrier Reef site stewardship, and future conservation measures at our premier tourism locations. While the first such reserach got underway earlier this year at Quicksilver's Agincourt Reef 3, subsequent survey work has started at Michalemas Cay, home to our Ocean Spirit Cruises. 

Quicksilver’s Reef Biosearch marine biologists have been conducting research into the ecological composition and intricate structure of the reef surrounding Quicksilver’s Agincourt Reef pontoon - 72 km northeast of Port Douglas and located at the very edge of the Continental Shelf.

“By using drone technology, our aim has been to map out the reef and use this data and high-resolution imagery, coupled with in-water validation, to accurately document coral coverage within an approximate 20,000 m² area,” said researcher and Quicksilver marine biologist Fern Trent.

“Launching the drone over several days, including on one of the lowest tides of the year of just 0.2 metres, meant that a lot of the corals and clams were above the surface of the water. It’s providing a great opportunity for us to learn more about the reef, including for example, the location of the giant clams and unique micro habitats within our general snorkelling area.”

The high-resolution photographic data and tangible outputs such as 3D modelling and maps will also enhance visitor experiences – providing guests with a more informed snorkel experience and where to discover, for example, clownfish and other unique habitats. Additionally, it will provide a robust spatial framework for ongoing biological research and conservation efforts.

The research project commenced in April 2025 and as it progresses, the insights gained will be instrumental in ensuring the long-term health and resilience of the reef for future generations. 

Quicksilver Group Compliance and Environment Manager, Phil Coulthard said, “Quicksilver has a site stewardship commitment that extends more than 40 years at Agincourt Reef. Combining this effort with the Reef Authority’s Tourism Reef protection Initiative (TRPI) program over the past 4 years, Quicksilver has now established a comprehensive Site Stewardship Plan for Agincourt 3. 

“These plans are fundamentally based on site-specific research and monitoring programs coupled with innovative projects such as the use of drone imagery and GEONadir software for advanced reef mapping and impact assessment. These actions not only promote reef resilience at our own pontoon site, but also provides a wealth of data that the Reef Authority can use for management decisions, policy development, and adaptive management strategies for the entire Marine Park.”

Vision by Pang Tse, Indepth Video and Photography.

During a recent drone aerial survey, it was a rare opportunity to capture vision of Michaelmas Cay and the beautiful surrounding reef that our sailing catamaran Ocean Spirit visits each day.

With special permission from the Great Barrier Reef Marine Park Authority, the aerial survey work will form part of a comprehensive Site Stewardship Plan. Under normal circumstances, as Michaelmas Cay is a major seabird sanctuary, aerial drones are not permitted.

Together with ongoing site-specific research, monitoring programs, and innovative initiatives like this aerial work conducted by our Reef Biosearch teams, these efforts not only strengthen the resilience of our reef sites but also provide valuable insights to the Reef Authority for informed management strategies across the Marine Park.

Vision by Pang Tse, Indepth Video and Photography.

The crew on Silverswift's dive and snorkel adventures have some fun new interpretive material for guests to challenge themselves with - to find the Top 10 commonly encountered marine life while diving or snorkelling.

There’s also fun facts to discover about some of the fascinating creatures of the Great Barrier Reef, like did you know rays and sharks are related or that parrotfish poop makes up a huge part of the reef’s sand?!

At the end of the day, you can scan a QR code to score your check list, earn points and even generate a Marine Adventurer Certificate.

With some of the best day boat diving in the Cairns region, Silverswift offers the opportunity to explore a selection of three spectacular sites daily with diving and snorkelling the only activities – a day perfect for the adventurer and those confident in the water.

Silverswift has 22 exclusive World Heritage Great Barrier Reef sites, visiting remote locations on Flynn, Pellowe, Milln and Thetford Reefs, as well as Norman Reef and Michaelmas Reef. Locations vary with the day’s conditions however each site is chosen for visual impact and ecological diversity for the best possible experience.

In great news for Reef Education and Queensland schools, the Great Barrier Reef Education Experience Program has been extended to 2029. This Queensland government initiative offers school subsidies of up to $150 per student.

Quicksilver Group’s Reef Biosearch marine biologists lead our hands-on Reef Education programs, bringing the curriculum to life through interpretation, and activities like snorkelling, guided island walks, glass bottom boat and semi-sub tours. Aligning with the Australian curriculum, students from Primary to Secondary levels can explore subjects such as coral cay habitats, life cycles and food webs through to marine science investigations in this incredible outdoor classroom.

A New Era of Living Classrooms

The launch of the Low Isles Living Classroom in early 2025 marked another milestone for the Quicksilver Group’s immersive education offerings. This program builds on the success of the pioneering Great Adventures Green Island Living Classroom - the first initiative in our region to deliver accessible, curriculum-aligned education experiences on the Great Barrier Reef for students of all ages.

Both island-based programs complement our popular outer reef excursions, giving schools the flexibility to choose the setting that best suits their learning goals.

With the program now extended, more Queensland students will have the chance to discover the Reef, guided by expert marine biologists - and discover that learning can truly be an adventure, and fun too!

Reef Education Enquiries

The Great Adventures crew were happy to host a special guest recently - Thor, an assistance dog and his owners for a day trip to Green Island. Thor is a retired greyhound racer, now enjoying a slower paced life supporting his owners while travelling around Australia. 

We were delighted to welcome host Charli Robinson and the Getaway TV crew to showcase Green Island and our beautiful eco resort. You can check out the story here or at 9Now 

Congratulations to these two legends!

The team at Pro Dive Cairns recently came together for a small celebration to recognise the outstanding service of two long-term team members who have reached major milestones in their journey with the company.

We’re proud to acknowledge:

• Perry Roos, Land Operations Manager - 15 years of dedicated service. Perry’s journey began as a dive instructor, before moving to HR and is now part of the management team.
• Carla Bark, Accounts - 10 years of dedicated service.

Both were presented with an award statuette in appreciation of their commitment, hard work and the positive impact they continue to make at Pro Dive Cairns.

Here’s to many more years of excellence!

Quicksilver is proud to celebrate the outstanding achievement of apprentice Cain Perry, who was named “Automotive and Diesel Fitting – Fixed and Mobile Plant Apprentice of the Year” at the 2025 TAFE Queensland Cairns Trade Excellence Awards.

Now completing the third year of his apprenticeship, 20 year old Cain is also continuing a proud family legacy—his father, Bruce Perry, is Quicksilver’s long-standing Workshop Supervisor and a highly experienced diesel fitter himself, while Cain's twin brother is also completing his boiler maker apprenticeship with Quicksilver.