Silversonic Outer Great Barrier Reef Cruise from Port Douglas
Overview
Available languages
10 hours
Mobile ticket
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 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.
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 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
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
526 reviews
Total reviews and rating from Viator & Tripadvisor
Great time on GBR
Taylor C,May 1, 2026
- Review from Viator
5.00Great experience! Saw lots of wildlife and learned a lot too. Wonderful crew! We did the intro diving which was amazing
Shout out to Gordon!
sumanm817,Apr 30, 2026
- Review from Tripadvisor
5.00The day was beautiful, perfect for the reef tour! A special shoutout to Gordon, what an amazing person! He took the time to show me around as I was a first-timer and gave me the confidence to try snorkeling by myself. And guess what? I saw a turtle, it was as close as arm’s length! I couldn’t believe I was able to do it on my own. Thank you, Gordon—you’re amazing! A special mention to the staff, thank you for looking after all of us. The food was great and you kept checking on us to make sure we’re ok!! Thank you for your hospitality guys!!
The snorkeling was good, and the staff was great except for the captain who was rude.
Passport12920835862,Apr 27, 2026
- Review from Tripadvisor
2.00The snorkeling was good. At the last stop the snorkeling was great. The crew were great except the captain who was rude.
Absolutely once in a...
Taylor R,Apr 22, 2026
- Review from Viator
5.00Absolutely once in a lifetime experience! We did the 2 intro dives and our instructor Hannah was fantastic, especially in spending extra time with those who needed more support. A great crew overall who have the entire experience set up as a well oiled machine. So worth it
Superb day on the reef
V3045JEdeank,Apr 19, 2026
- Review from Tripadvisor
5.00Magical day on the reef. The crew were professional and lots of fun. Visited 3 amazing reefs and a generous amount of time at each. Would recommend this tour operator.
Highly recommend; left me speechless
Kimberly S,Apr 8, 2026
- Review from Viator
5.00Amazing experience!!! Very well organized & professional! Loved that we had 3 different dive/snorkel sites. The equipment was in good working order, buffet lunch delicious, and plenty of time to spend in the water. In addition to the wonderful day, I want to acknowledge the office staff for helping me retrieve my favorite bathing suit that I accidentally left on board.
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.
Related Experiences
Operated by The Quicksilver Group