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)
Pickup points
Select a pickup point
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 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 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
Reviews
511 reviews
Total reviews and rating from Viator & Tripadvisor
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.
Great snorkeling
Theresa C,Jan 6, 2026
- Review from Viator
5.00Great trip snorkeling around the reef. They were really organized, informative and efficient making it a great day for everyone
Amazing crew and the...
Katie P,Jan 5, 2026
- Review from Viator
5.00Amazing crew and the perfect day! I’d recommend this tour to everyone! Really informative and fun and the lunch buffet was 10/10 with lots of different options as well.
Barrier reef at its best!
miknik,Dec 28, 2025
- Review from Viator
5.00One of the best boats weve been on and weve been on loads throughout the world! Plenty of friendly staff, very knowledgeable, lets you go off on a buddy system to explore the reefs and tell you exactly where the best spots are! Full catering on board with topnotch spread o cold meat, prawns salad fruit, hot meal of beef ! Excellent photographer on board with reasonably priced pics to buy! We saw turtles sharks so many fish, coral is outstandingly beautiful and colourful and sooooo big! Our diving instructor was so good! Simon youve sold the kids to do their padi courses! Such a lovely day!
Outer reef dive & snorkel
JKW 12,Dec 26, 2025
- Review from Tripadvisor
5.00Great value, good food and 3 dive spots. Wonderful dive refresh with Gordon who was calm, clear, confident - and gave our nephew the best intro dive. Highly recommend
Fantastic experience
Alexandrea B,Dec 25, 2025
- Review from Viator
5.00Originally booked diving but alas could not due to asthma restrictions. However had a fantastic day and saw as much with a snorkel as you would have done diving anyway. 3 beautiful and different sites. Highlights were reef shark, Nemo, dory and parrot fish. Like being in a fish tank of stunning coral. Lovely food for lunch. Great company and very well run. Even managed to swim.down to a giant clam
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