Port Douglas Dive & Snorkel Tours | Great Barrier Reef | Swim With Whales (seasonal)

Tour Code: 102

Departing: Port Douglas

Pickup: Cairns, Cairns Northern Beaches, Palm Cove, Port Douglas

Swim With Whales July - August
  • See the amazing scenery of this World Heritage Site above and below the water. You will pass the mountains of Cape Tribulation with the majestic Thornton’s Peak (4th highest mountain in Queensland). 
  • Stand on the upper deck, with the backdrop being the crystal clear turquoise waters and darker blue areas of the Great Barrier Reef. Smile and click. You won’t believe how amazing the waters look behind you.
  • One of only 3 day boats in Port Douglas with a "Swim with Dwarf Minke Whales" tours July - August 
  • A very well-known and respected Great Barrier Reef tour operator. Professional crew, the choice of many reef moorings, visting 3 on a daily basis. A great trip for dedicated scuba divers looking for the best day tour.

Included In Price

  • Please note this vessel is not operating till the end of 2021
  • Visit 3 different reef sites at Agincourt Ribbon Reefs
  • Morning Tea/coffee with fresh muffins
  • Afternoon tea/coffee with cake
  • Delicious buffet lunch with prawns
  • Reef Interpretation Talk
  • Guided Snorkel Tour with marine biologist
  • All snorkel equipment and tuition
  • Lycra suits and floatation devices
  • Fresh water showers

Your Great Barrier Reef tour is on a luxury 24 metre catamaran departing from Port Douglas, you will be taken out across the clear, aquamarine waters of the Coral Sea to the amazing Agincourt Ribbon Reefs, part of the outer Great Barrier Reef.

On your Great Barrier Reef tour from Port Douglas you will snorkel and dive 3 coral reefs in 1 day, each one will be carefully chosen to give you the best opportunity to see the best and most vibrant parts of the northern section of Australia's Great Barrier Reef.

You will be taken to the coral reef sites that can give the best conditions on the day to ensure great visibility, calmest conditions and the largest marine diversity.

Swim With Whales Licence :- This is one of only 3 boats in Port Douglas with a "swim with whales" licences. This allows guests to enter the water and hold onto a rope whilst the cute Dwarf Minke Whales come over and swim around and amongst you.

Dwarf Minke Whales are in this region during the months of July - August

Humpback Whales migrate annually to calve in the safe waters of the Agincourt Ribbons Reefs during the months of June to August and you will see them breaching out of the water as you cruise to your dive and snorkle locations    

If you are a little rusty, or have never snorkelled before, then don’t worry.  Experienced snorkel guides are on board to help you and to make you feel comfortable.

A full briefing will be given before you enter the water and once in, your snorkel guides can assist you.

If you wish to join a guided snorkel tour then you can join the tour and enjoy learning about the amazing marine life you are seeing, as you see it. 

For all certified divers there are guided diving tours that you can join (extra cost). Your dive guides have an intimate knowledge of the dive sites you are visiting and can take you to all the ‘secret’ places to discover the best marine life and diving.

Remember to bring your certification card and if you forget it, you can be looked up online (PADI only).

Reef Tour Coach Pick Up

Transfers can be arranged from Cairns, Northern Beaches and Port Douglas – please advise your Great Barrier Reef Tour Specialist if you require a transfer (at extra cost)

Journey to the Reef

Your luxury catamaran will depart from the Port Douglas Crystalbrook Super Yacht Marina. 

Snorkel/Dive Vessel

Your luxury cruise vessel is a 24 metre, high-speed catamaran and with a top speed of around 30 knots she will transport you to the outer Great Barrier Reef in comfort and speed. 

She has been custom-designed for ease of activities on board with easy access snorkel platforms (hydraulically lowered), large open deck areas, perfect to laze on under the tropical sun and sip on a drink from the licensed bar.


The shallow reef lagoons where sunlight is plentiful allows for flourishing coral growth and extensive coral gardens that makes for great snorkelling.

On these corals you will see vibrant fish life sporting an array of amazing colours.

From beginners to advanced there is stunning snorkelling for everyone at all levels.

For beginners the conditions are ideal with clear waters, minimal current and shallow reefs and for the more experienced there are coral pinnacles and steep drop offs.

Between the months of July and August you might be lucky to snorkel with pods of migrating Dwarf Minke Whales (this tour has one of the few permits that allow snorkelers to do this).

You will be fully briefed before your snorkelling activity and there will be snorkel guides in the water to assist.

If you wish, you can join a guided snorkel tour where the wonders of the deep will be unravelled. 

Understand what coral is and find out about the quirky behaviour of the fish you are seeing.

Reef Education and Guided Eco Reef Talk

On your trip out to the Agincourt reef on the outer Great Barrier Reef, you have the chance to learn about the reef and the life on it.

In an eco presentation on board you will learn how the Great Barrier Reef was formed and of the microscopic animals that made it.

You will learn about the bizarre life cycles of the fish and all their quirky natures. 

Nothing brings your Great Barrier Reef trip more alive than learning and understanding about the marine life that you will be encountering on your day cruise. 

Scuba Diving

On every diver’s ‘must do’ list is the Great Barrier Reef.

You will be diving the outer Great Barrier Reef on Agincourt reef, a set of ribbon reefs at the northern end of the reef system off of Cape Tribulation and the Daintree Rainforest.

There are 16 different dive sites on the Agincourt Ribbon Reef.

Diving on the Great Barrier Reef is ideal for the novice or the more advanced diver.

You will swim past giant clams, meander through coral gardens, cruise with turtles and dive amongst the colourful clouds of basslets and chromis.

Look out in the blue and see shoals of barracuda and passing sharks and rays.

It really is like an aquarium with the crystal clear clarity of the water, no strong currents and comfortable, warm waters (from 22-29 Celcius, 70-80 Fahrenheit).

The maximum dive depth is 18 metres (60ft). 

If you don’t have your certification card, it’s no problem, for any PADI certified divers this can possibly be checked online, but just in case make sure you bring it along with you on the day. 

See our sister ship that also visits 3 reef sites in 1 day and also has a swim with Dwarf Minke Whale licences. 

Tour Languages Offered
  • English
Departs From

Port Douglas

Departure Time
  • 8:30am to 4:30pm
  • ​Please note this vessel is not operating till the end of 2021
Pickup Locations
  • Cairns
  • Cairns Northern Beaches
  • Palm Cove
  • Port Douglas
  • Transfers from Port Douglas, Cairns and Northern Beaches can be arranged (not included in tour price)

3 Reef Sites at Agincourt Ribbon Reefs

Months of Operation

January - December

Days of Operation


Does not operate Christmas Day
​Please note this vessel is not operating till the end of 2021


8 hours (approx)

Available for Purchase / Hire
  • Wetsuits
  • Digital images by professional photographer
  • Fully licensed bar & range of souvenirs
  • Digital Underwater GoPro cameras for hire (must be prebooked)
Fitness Level Required



Scuba Diving – minimum age 12


Scuba Diving Restrictions

  • Certain medical conditions and medications may preclude some people from scuba diving.
  • Participation is subject to a medical questionnaire completed on board with the tour operator
  • Minimum age for scuba diving is 12 years.
  • Flying after scuba diving: a wait of 12 hours is recommended after one dive, 18 hour after 2 dives and at least 24 hours after multiple dives, before ascending to an altitude of 300 metres or greater.

Advanced Dive Medical Intro Dive Medical

Read more about Diving Safety on the Great Barrier Reef.

Additional Information

Medical Requirements for divers: Asthma and some medical conditions will prevent you from diving without a Queensland dive medical.

  • Swimwear, hat, towel, sunglasses, sunscreen
  • Cash, VISA or Mastercard for onboard purchases

Customer Reviews

Average Rating


Reviewed on August 09, 2017

Crew was really friendly and professional. The trip was really nice and we visit some amazing spots around the reef. We booked an intro dive which was just right, crew was not too helpful, thought, as the tanks were really heavy and someone can injure their back getting off the water as they not help you with that. Also I think groups are too big so you can miss some explanations and the education about the reef if you are not next to the guide. They should have more bilingual crew members.

Response From Barrier Reef Australia

Hi Paula, thanks for your feedback! The Tour Specialists team are pleased you enjoyed your time on the Outer Barrier Reef. Introductory diving can be a little daunting and the gear can be unexpectedly cumbersome but once you are under the water there is nothing quite like it which makes the experience all worthwhile. We will pass on your feedback to the crew however next time you visit please be sure to let us know of your language needs and we can ensure you travel on a day with a crew member who is bi-lingual. We look forward to welcoming you back to Port Douglas and the Great Barrier Reef soon.

Grant D

Reviewed on May 19, 2017

Very professional but fun also. Good food and dive service/gear etc. 3 dives at 3 sites were a bit rushed but you could choose to do 2 if that is a problem. Rating the sites, 1st site 2.5 stars, 2nd site was about 4.5 stars third was 2.5 stars. Lots of bleaching and damage can be seen but still decent vibrant fish life. Very safety conscious also and dive guide was professional without being 'great'. Also this company was best price around to buy this tour.

Response From Barrier Reef Australia

Thank you Grant for your review of your Great Barrier Reef tour from Port Douglas. Very glad you enjoyed the day and we look forward to seeing you back in Cairns in the near future

Emma S

Reviewed on February 07, 2017

I can highly recommend this trip. Staff were absolutely lovely, boat was well-designed, numbers were not too many and three separate sights gave plenty of snorkling time. I would definitely book with Poseidon again. A fantastic day!

Response From Barrier Reef Australia

Thanks for your feedback Emma. The Tour Specialists are pleased you had a great day on the Southern Ribbon Reef and enjoyed the smaller numbers on your reef cruise from Port Douglas. We hope to see you back again soon - maybe in Winter next time to see the Minke Whales.

Paula C

Reviewed on August 19, 2016

Sea was rough but crew remained positive and we still enjoyed snorkel sessions.

Response From Barrier Reef Australia

We are very glad to hear you made the most of your day and enjoyed your snorkelling on the Great Barrier Reef. The Agincourt Reef system offers some of the most diverse fish & coral in the region. We look forward to welcoming you and your family back on Poseidon Port Douglas in the future.

  • 4-14 Years inclusive, children's rates apply.
  • 0-3 years are Free Of Charge

All cancellations must be in writing. Please note that all cancellations will incur an administration fee. Please see our terms and conditions page here for details prior to booking.

Operator's Cancellation policy:

For cancellations after 4pm on the day prior to travel a 100% cancellation fee will apply.

For cancellations between 12 midday and 6pm on the day prior to travel a 50% cancellation fee will apply.

For cancellations before 12 midday on the day prior to travel no cancellation fee will apply.

On rare occasions, services can be subject to the effect of weather or unforeseen circumstances. 

Should a cruise not operate for any reason passengers will be offered an alternative day of travel or a refund will be authorised.

  • For cancellations before 12 midday on the day prior to travel no cancellation fee will apply.
  • For cancellations between 12 midday and 6pm on the day prior to travel a 50% cancellation fee will apply.
  • For cancellations after 6pm on the day prior to travel a 100% cancellation fee will apply.

Port Douglas Dive & Snorkel Tours | Great Barrier Reef | Swim With Whales (seasonal)

Tour Code: 102

Departing: Port Douglas

Pickup: Cairns, Cairns Northern Beaches, Palm Cove, Port Douglas

Swim With Whales July - August



Prices are AUD, per adult and include all levies fees and taxes.

Child: au$188.00
Family: au$900.00

Tour Code: 102



15 yrs & over

4 - 14 yrs

0 - 3 yrs

Ages of Children
(Discounts May Apply)
1300 231 118
+61 427 074 745
1300 231 118
+61 427 074 745

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