Port Douglas

Silversonic Outer Great Barrier Reef Dive and Snorkel Cruise from Port Douglas

Badge of ExcellencePort Douglas, Australia
Likely to Sell Out

From USD 185.40

Select Date and Travellers

Free cancellation
Up to 24 hours in advance.
  • 10 hours (approx.)
  • Hotel pickup offered
  • Mobile ticket
  • Offered in: English


Swim among the fantastic marine life of the outer Great Barrier Reef on this full-day snorkel and scuba catamaran cruise from Port Douglas. Visit three different dive sites on Agincourt Reef, where you can choose to scuba, snorkel or both. Introductory and certified scuba dives are available, and expert guides are on hand to provide instruction and point out highlights of the underwater world. Enjoy a total of 5 hours on the reef, breaking to recharge with a buffet lunch plus morning and afternoon tea. Hotel pickup and drop-off from Port Douglas is included.
  • Full-day cruise to Agincourt Reef on the outer edge of the Great Barrier Reef from Port Douglas
  • Snorkel or scuba dive from the back of the boat
  • Visit three different sites and five hours on the reef
  • Beginners can snorkel or try an introductory dive
  • Experienced divers can complete up to three certified dives
  • Cruise on a luxurious catamaran accommodating up to 80 passengers
  • Enjoy buffet lunch
  • Hotel pickup and drop off at Port Douglas hotels

What's Included

  • Use of Snorkelling equipment
  • Snorkel tour with reef guide
  • Lycra suits & Prescription masks
  • Lunch
  • Afternoon Tea & Coffee/Tea
  • Hotel pickup and drop off from Port Douglas area
  • Environmental Management Charge
  • Drinks
  • Gratuities
  • Wetsuit hire for snorkellers (approximately AUD $15)
  • Optional activities (if options not selected)

Meeting And Pickup

You can head directly to the meeting point, or request pickup

Meeting point

  • Crystalbrook Superyacht Marina
    44 Wharf St, Port Douglas QLD 4877, Australia

Pickup points

Select a pickup point

Start time

08:30 am

End point

This activity ends back at the meeting point.

Pickup details

Check-in is required by 8am. Cruise departs from the Reef Marina Port Douglas at 8:30am. Hotel pickups commence from 7am

What To Expect

Explore the outer reaches of the Great Barrier Reef with this full-day adventure to Agincourt Reef, which sits at the edge of the Continental Shelf. After pickup from your Port Douglas hotel, board a comfortable 95-foot (29-meter) catamaran and settle in among the inside cabin seats or sun decks for the scenic ride out to the reef. 

Throughout the day, visit three renowned dive sites that the cruise has exclusive access to, and customize your adventure with different options for exploring the reef. If you prefer to stay close to the surface, splash into the clear waters with provided snorkeling equipment and either snorkel on your own or join a guided tour. Or, go even deeper with a scuba experience. Beginning divers can try an introductory dive, and those with scuba certification can embark on up to three certified dives. 

No matter what you choose, you’ll get an up-close perspective on the spectacular ribbon reef teaming with an array of marine life such as schools of tropical fish, small reef sharks, massive coral formations and giant clams weighing up to 440 pounds (200 kg)!

When you come to the surface, recharge with a delicious buffet lunch on board, and break for morning and afternoon tea. Grab a drink from the fully licensed bar if you’d like something stronger (own expense), and stay comfortable with facilities including restrooms and freshwater showers. After approximately 5 hours at the reef, relax and soak up views of the Coral Sea on the return trip to Port Douglas. 

Note: Book early to secure your spot, and enjoy a flexible reservations policy that allows you to change the date of your tour at no additional charge once you arrive in Port Douglas.

Silversonic Dive & Snorkel

15 minutesAdmission Ticket Free

Agincourt Reef

4 hours Admission Ticket Free

Additional Info

  • Confirmation will be received at time of booking
  • 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.
  • Not wheelchair accessible
  • Near public transportation
  • No heart problems or other serious medical conditions
  • Travellers should have a moderate physical fitness level
  • This tour/activity will have a maximum of 90 travellers

Cancellation Policy

You can cancel up to 24 hours in advance of the experience for a full refund.

  • For a full refund, you must cancel at least 24 hours before the experience’s start time.
  • If you cancel less than 24 hours before the experience’s start time, the amount you paid will not be refunded.
  • Any changes made less than 24 hours before the experience’s start time will not be accepted.
  • Cut-off times are based on the experience’s local time.
  • This experience requires good weather. If it’s cancelled due to poor weather, you’ll be offered a different date or a full refund.

Traveller Photos

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210 reviews
Total review count and overall rating based on Viator and Tripadvisor reviews
Reviews by Viator travellers.
Showing 1-10 of 210 reviews
Very enjoyable day out on...
Joshua_R, Mar 2023
Very enjoyable day out on the reef. Daan took our introductory dives & was a fabulous instructor. Highly recommended!
Great cruise but don’t book through Viator
Helen_G, Mar 2023
This cruise liner was absolutely wonderful. Viator on the other hand not so understandable. I messaged them the day before as I had vomiting and diarrhoea to see what I could do about my tour. I asked to postpone it to another day within the week but apparently had no bookings. I then asked for a refund but couldn’t do that as it was passed the cut off time for me to cancel - so I had to go!!! Well I was vomiting for the whole trip. Didn’t enjoy it one bit. The staff on the liner were very helpful and caring and would look out for me as best they could. Couldn’t fault them at all. Viator on the other hand you need to be more sympathetic and be more understanding to people that genuinely, unwell and give them their money back. Hope I didn’t infect anyone on that tour because if I did then it’s on you Viator!!!! Won’t be booking through you again either.
Great customer service, spectacular views
Joe_H, Feb 2023
Fantastic experience. Haven’t dove in a while so it was nice to have all the gear already setup. Views were beautiful. Lunch was pretty decent as well. Entire trip would have been worth it just to see the reef. 10/10 recommend
Beautiful reef sites
SIERRA_E, Feb 2023
The three sites we visited were all so beautiful and diverse. The water at the sites was relatively shallow and clear making it very easy to see the amazing colors of the coral and so many colorful fish. Staff was very friendly and made sure everyone stayed safe even in the difficult weather we had.
Amazing. Good Experience....
NICOLA_D, Jan 2023
Amazing. Good Experience. So good. Amazing experience. Service very very good. Thank you. …………….. Giuseppe
Thanks for an amazing experience!
Lisa_C, Jan 2023
It was like swimming in an endless tropical fish tank! So many varieties of beautiful fish and the coral was amazing, seeing a turtle was a highlight! Crew were all friendly and Jeff was a great instructor for our first diving experience. Ride was smooth and food was plentiful and delicious. Highly recommend!
Best Tour to Reef
Rachael_W, Jan 2023
Amazing day with fantastic crew. Highly recommended day out. Plentiful food, warm crew, amazing boat.
Well spent money
Hugo_h, Jan 2023
Relaxed and well organized day. Easy going and full support from dive team. Equipment ready and well maintained, relaxed dive with a lot to see.
Extremely professional...
Pavelich_B, Dec 2022
Extremely professional and well organised excursion. Have already recommended to work colleagues and friends.
Clouds over the Barrier Reef
Klaus_C, Dec 2022
Group was huge. Snorkeling under strong conditions. Waves, wind, missing sun, less fishes, grey colour of reef . Missed colours. Team of boat was friendly and has helped as much as they can. All have done there best.
Great trip to the Great...
Charles_L, Dec 2022
Great trip to the Great Barrier Reef. Staff on board were very attentive and helpful. Hit three spots on the reef, all a little different. A wonderful experience. Highly recommend.
A fabulous trip
vivheskett, Dec 2022
A professional crew who made us feel very welcome and safe. Great food. Visited 3 very different reefs with wonderful wild life. A rich and diverse eco system. A wonderful day.
Amazing Reef Trip
Andrea_K, Dec 2022
Booking was simple, communication was amazing, pick up was on time, could not fault the service it was outstanding. Great sites, excellent gear provided and the staff, each and every one of them outstanding.
You HAVE to do this!
Emma_H, Nov 2022
The entire day was amazing, we snorkelled at 3 different sites, we saw Turtles, sharks and most of the cast of Nemo! Crew were so friendly and knowledgeable, lunch was great. A must do activity!
great snorkelling experience,
Sara_B, Nov 2022
staff were very caring, the service was of high standard, safety was taken seriously, My only issue was the camera that was hired from the boat by a guy named Michell, was faulty, the battery got flat at the first site, then it would not record, it was a big inconvenience, my recommendation is don't bother renting their cameras, is not worth the hassle of carrying a faulty piece of equipment. When I complained to the office, the lady told me that it was a different company, so not much could be done. please stop renting defective equipment , the 25 dollars that I got back was not worth the hassle.
Once in a lifetime experience
Alessio_D, Nov 2022
Beautiful scenery when traveling throughout the great barrier reef. Amazing and supportive staff, particularly when communicating instructions.
satisfied tourists
Gary_H, Nov 2022
My husband and I traveled from Los Angeles to Cairns with the main purpose of snorkelling in the Great Barrier Reef. Before coming here, I searched a lot of related services on the website and finally selected this company based on the reviews of Tripadvisor. Their service far exceeded our expectations, value for money, every crew member is very helpful and very knowledgeable. The whole trip is compact and efficient, the most important thing is to snorkeling in three different locations and see the most beautiful coral reefs and a variety of beautiful fish. Comparing the Caribbean and Hawaii we have been to, this is the best.
Amazing trip
vanessa_a, Nov 2022
Great day, well ran and great value for money! Definitely recommend to friends. We did the snorkeling and had a great crew very informative and even took us on a guided snorkel. We saw lots of different fish and even a few reef sharks!
The crew were amazing...
Buffy_B, Nov 2022
The crew were amazing ….so helpful and they had a wonderful sense of humour…..was also pleasantly surprised by the food….lots of variety and delish!
DO IT! (3 certified dives)
Gregory_C, Oct 2022
The whole experience start to finish was a very well-organized operation. The crew was knowledgeable, customer service was amazing, the boat was great and everything was on time, meals were way better than expected, and the crown jewel was obviously getting to dive the Great Barrier Reef. Did the 3 certified dives with dive master Gordon and really really enjoyed the whole thing start to finish. I was a little nervous as a less experienced diver but Gordon looked out for me and my buddy and made sure we were comfortable and diving within our limits while having a once in a lifetime experience of diving the GBR. Highly recommend!!!