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..
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).
Options
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
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
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
Snorkeling Only
Cruise Only : 5hrs on the Outer Reef, visiting 3 sites. Including Port Douglas transfers from hotels, buffet lunch, snorkel gear and tour.
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
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Reviews
533 reviews
Total reviews and rating from Viator & Tripadvisor
Gordon made my Great Barrier Reef dive unforgettable!
sohanm401,Jun 14, 2026
- Review from Tripadvisor
5.00Gordon was an absolutely fantastic dive instructor — knowledgeable, calm, and just a genuinely great person to be in the water with. His chill vibe made the whole experience relaxing and fun, even for those of us who were a bit nervous. The highlight? He showed us a shark resting in a cave — a moment I’ll never forget. Gordon pointed it out without disturbing the shark or the reef, keeping everyone safe while making sure we got an incredible view. If you’re heading to the Great Barrier Reef, ask for Gordon. Professional, easygoing, and clearly passionate about what he does. 10/10.
Great experience! We had...
Zonnya C,Jun 2, 2026
- Review from Viator
5.00Great experience! We had one diver and one snorkeler. Diving guides and equipment were professional. Clear instructions. Nice boat and lunch/snacks.
Amazing experience on the reef
G7978EKelisav,May 29, 2026
- Review from Tripadvisor
5.00Had an amazing time diving on Silversonic! The corals were insane and we saw so many sharks. Special mention to Gordon , he even managed to find a shark hidden in a cave!! Thank you 🫶🏼
Introductory Dive
wyattt544,May 25, 2026
- Review from Tripadvisor
5.00We had an amazing time doing an introductory dive. Our guide, Gordon made it extremely easy to learn and gave us an amazing experience we will remember forever.
Our first trip to GBR and our first dives !
Suresh V,May 8, 2026
- Review from Viator
5.00To The entire team of Silversonic - Thank you. They were very friendly, patient and made all of us very comfortable. Gordon was our dive instructor and he was extremely patient and understanding as it was our first dives. I was able to do two intro dives and by the second dive, I was able to move around myself and he was closely watching us to ensure we were absolutely safe. The food was great and plenty. There was plenty of cookies/biscuits and coffee/tea before we left and again later in the afternoon. The photographer ensured we all got our time in the Reef captured. While the sea was rough and bumpy on the way back, the skipper ensure we all got back safely ! Kudos to him ! The crew also offered sea sickness tablets which we bought and glad we did. All in all, a great day and crew. Highly recommended!
Great way to see the Great Barrier Reef
Dave-Deb-H,May 7, 2026
- Review from Tripadvisor
5.00Great diving locations selected. On smaller ship which was great, not overloaded. Staff all very friendly and helpful.
Great Barrier Reef 2026
Laura S,May 5, 2026
- Review from Viator
5.00Outstanding snorkeling! Lots of sea life! Guides were very helpful and equipment was good. Loved Madi! Go Noles!
Fantastic!
Deb H,May 5, 2026
- Review from Viator
5.00Incredible! The variety of sea life and coral were amazing. The crew was outstanding! Friendly, fun, professional, knowledgeable, and helpful. Highly recommend!
Awesome Experience
I2151OKkevina,May 2, 2026
- Review from Tripadvisor
5.00This was an awesome adventure! Matt was great!!!
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
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