Silversonic Outer Great Barrier Reef Cruise from Port Douglas
Overview
Available languages
10 hours
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See the Great Barrier Reef's coral and marine life on this full-day trip from Port Douglas. Whether you are a snorkeler or a scuba diver, experienced or a novice, this snorkel and dive cruise from Port Douglas is the perfect day out on the Great Barrier Reef. Visiting three different dive sites you'll discover the abundant marine life and diversity of coral which the Great Barrier Reef is world-famous for.
The friendly crew will be happy to answer any questions you have throughout the day. The boat features full bar facilities, fresh water showers and expansive sundecks overlooking the Coral Sea. A tropical buffet lunch will be served between sites, along with morning and afternoon tea.
Additional Info
Public transportation options are available nearby
Not recommended for travelers with poor cardiovascular health
Travelers should have at least a moderate level of physical fitness
Minimum age for introductory scuba diving is 12 years. All diving participants will be required to complete a health questionaire prior to diving. Some pre-existing medical conditions (eg asthma, heart conditions, etc) may prevent you from diving, please consult your doctor
After a single dive, a wait of 12 hours is recommended before flying. If doing multiple dives, an interval of 24 hours is recommended.
Between July 27th and October 18th, 2025, Silversonic will be temporarily operated by our vessel, Poseidon..
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
What To Expect
Silversonic Dive & Snorkel
Your day begins with pickup from your Port Douglas hotel. The fastest ride out to the reef from Port Douglas, the ultra modern 29 meter catamaran will be your base for the day. Throughout the day you'll visit three locations on Agincourt Reef, each showcasing a different aspect of the beautiful Great Barrier Reef. The cruise has exclusive access to 22 premier internationally recognised reef sites and you have the choice to snorkel, dive or a combination of both. The friendly crew will be happy to answer any questions you have throughout the day. The boat features full bar facilities, fresh water showers and expansive sundecks overlooking the Coral Sea. A tropical buffet lunch will be served between sites, along with morning and afternoon tea.
Agincourt Reef
Agincourt Reef sits at the very edge of the Great Barrier Reef, a ribbon reef running parallel to the Continental Shelf. There is a multitude of marine life at Agincourt Reef, from tiny iridescent fish seeking shelter in their coral homes to massive giant clams weighing up to 200 kilograms (440 pounds).
What‘s Included
Lycra suits and prescription masks available
Use of snorkeling equipment (mask, fins, snorkel)
Environmental Management Charge (EMC)
Hotel pickup and drop-off from Port Douglas area
Guided snorkel tour with a marine naturalist
Buffet lunch, plus morning and afternoon tea
Drinks
Gratuities
Wetsuit hire for snorkellers (approximately AUD $15)
Optional activities (if options not selected)
Fuel surcharge
Pickup points
Select a pickup point
Options
Two Certified Dives
5 hrs on the Outer Great Barrier Reef, visiting 3 sites. Includes 2 certified dives, pickup/drop off from Port Douglas hotels, buffet lunch, snorkel & dive gear
Proof of Certification Needed: Certified divers must possess an internationally recognised SCUBA certificate card to participate
One Certified Dive
5 hrs on the Outer Great Barrier Reef, visiting 3 sites. Includes 1 certified dive, pickup/drop off from Port Douglas hotels, buffet lunch, snorkel & dive gear
Proof of Certification Needed: Certified divers must possess an internationally recognised SCUBA certificate card to participate
Three Certified Dives
5 hrs on the Outer Great Barrier Reef, visiting 3 sites. Includes 3 certified dives, pickup/drop off from Port Douglas hotels, buffet lunch, snorkel & dive gear
Proof of Certification Needed: Certified divers must possess an internationally recognised SCUBA certificate card to participate
One Introductory Dive
5 hrs on the Outer Great Barrier Reef, visiting 3 sites. Includes 1 introductory dive, pickup/drop off from Port Douglas hotels, buffet lunch, snorkel & dive gear
Snorkeling Only
Cruise Only : 5hrs on the Outer Reef, visiting 3 sites. Including Port Douglas transfers from hotels, buffet lunch, snorkel gear and tour.
Two Introductory Dives
5 hrs on the Outer Great Barrier Reef, visiting 3 sites. Includes 2 introductory dives, pickup/drop off from Port Douglas hotels, buffet lunch, snorkel & dive gear
Reviews
518 reviews
Total reviews and rating from Viator & Tripadvisor
Good Reef Viewing, Not the Best Cruise Experience
CaliforniaLady7,Apr 6, 2026
- Review from Tripadvisor
3.00It may seem obvious, but the absolute best part of this cruise was being in the water, seeing the actual reef. The three reef sites chosen by Quicksilver for this particular cruise are quite strategic, and offer a great pay-off for the snorkelers; tons of colorful fish, countless types of coral and anemonies, and even a reef shark! However, once back on the boat, or even before you get in the water for the first snorkel/dive, the crew is not the most communicative. There was no announcements made for when or where to get your lycra stinger suit, and the crew handed out the incorrect sizes to at least half a dozen female snorkelers/divers, causing a traffic jam at the start of the first dive/snorkel while we all tried to go back to the fitting station to size up. There was also no advanced communication about when and where to meet for your particular group's briefing before the first snorkel/dive. After this, we were also told by the instructors/life guards that they would be joining us in the water for a significant period of time, so they could point out a couple of things in the water, including the farthest point we would be allowed to go before being asked to come back towards the boat. While I didn't have a watch on in the water, I would estimate that they weren't in the water with us for any longer than 10 minutes. The crew also asks you to only stay outdoors on the boat while you're wet (which, if you're making the most of this cruise, is 85% of your time on the boat, as you will be wet from the very first snorkel all the way up until approximately 4-5 hours later, after the third snorkel/dive), and the outdoor spaces on the boat are extremely limited/small with very little seating. All-in-all, I'd recommend taking your money elsewhere. We had a much better time with Calypso.
Staff was awesome. They...
Michael P,Apr 5, 2026
- Review from Viator
5.00Staff was awesome. They make sure you get what you came for. Well organized. Super professional. Incredible experience. 10/10 recommend
great experience at the reef, effortlessly
astepforever,Apr 2, 2026
- Review from Tripadvisor
5.00We did Frankland Islands from Cairns, live aboard and Silversonic from Port Douglas on our trip. Among these three, we felt that the experience with Silversonic was most convenient and effortless, despite the day we went was raining and with very strong wind. Silversonic went to the agrincourt reef, which lies far out at the edge of the great barrier reef. The reef is relatively shallow (deepest is 15m) with tall coral mountains almost extended to the surface. We got to see a lot of big and small fishes and variety of colourful corals just by snorkeling (vs scuba diving). Captain tried to drop us off as close to the coral mountains as possible, so that we didnt have to swim too much to get to them. We didnt get to see any turtle or sharks though. The boat itself is very comfortable. The food is nice. Warm fresh water is availabe for quick wash returning from the ocean. The food is very nice too. Highly recommended!
Excellent reef trip
Daniela R,Apr 2, 2026
- Review from Tripadvisor
5.00An outstanding day. The three different sites where stunning, transfer time between them was short and the crew made it an easy memorable day for everyone on board. Couldn't recommend the trip more.
Choose Quicksilver!
HBNC,Mar 11, 2026
- Review from Tripadvisor
5.00Diving the GBR has been on our bucket list and we are so glad we chose to go with Quicksilver. It is an extremely run well business - from the booking experience to the welcome aboard to having all the equipment we needed onboard and plenty of staff to help us in and out of our gear. Even a wonderful hot lunch was included. As experienced certified divers, we were worried that on a large boat that served different interests we might be tripping over snorkelers or put in groups with new divers who might require all of the dive master's attention or disrupt the flow of the dives. Thankfully, that wasn't the case at all. Gordon guided only us and and a few other experienced divers on our own route pointing out clown fish, sharks, giant clams and so much more along the way. He made us laugh a lot as well while setting up and during our surface intervals.
Top Notch Experience - Good Value
bmanthy,Mar 5, 2026
- Review from Tripadvisor
5.00Excellent experience end-to-end. Great customer service from ALL staff at every step. Excellent dive experience. Excellent experience on the pontoon platform. The boats are fast, smooth, and awesome. Great good on board. Book without hesitation!
Great experience- highly recommended
Michael F,Feb 20, 2026
- Review from Viator
5.00Great day on the reef. Staff was extremely helpful and knowledgeable. Shout out to Moni who was the best!! Buffet lunch was plentiful and had a wide verity of choices. Highly recommended
Fabulous!!
Michaela F,Feb 15, 2026
- Review from Viator
5.00Amazing snorkeling in 3 different locations with no other tour groups or boats. We lucked out with the weather being that it was January so it was a perfect day. Equipment was good quality for a tour company, stinger suits good too. Plenty of food provided with snacks and buffet which is great after lots of swimming. Staff were great and super helpful and friendly. Would recommend to anyone and do it again if I’m ever heading back to the GBR.
Don't miss this!!
Kasey H,Feb 13, 2026
- Review from Viator
5.00Bucket list trip for sure! The boat was extremely well appointed and comfortable. Staff was friendly and fun. Moni was our dive instructor for our small introductory dive group and she was AMAZING!! So informative and calm. I can't say enough great things about her and her ability to manage 4 new scuba divers under water! The reef was even better than I anticipated. This is a can't miss excursion!
Wonderful experience! The...
Stuart D,Feb 10, 2026
- Review from Viator
5.00Wonderful experience! The crew is obviously well trained, very knowledgeable and super focused on safety. They take good care of both snorkelers and scuba divers, plus feed everyone well.
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Operated by The Quicksilver Group