Silversonic Outer Great Barrier Reef Cruise from Port Douglas
Overview
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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
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
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
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.
Reviews
528 reviews
Total reviews and rating from Viator & Tripadvisor
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
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.
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