Great Barrier Reef Coral Spawning Expeditions


Don’t miss the opportunity to see coral spawning on the Great Barrier Reef on our special night trips. Once a year, usually just after a full moon in late spring or early summer, all the corals on the reef spawn at once in a dazzling display. 

You’ve probably never thought about how coral reproduces, but the answer is nothing short of spectacular! Millions of tiny cells come shooting out of corals all over the reef in a mass synchronised event, pouring into the water like champagne bubbles and forming a massive pink ‘slick’ that coats the surface.  

This rare and dramatic phenomenon lasts just a couple of nights, after which the tiny baby corals settle down onto the reef and find a place to grow and flourish. 

A nighttime coral spawning dive trip is an unforgettable experience. We offer dedicated Great Barrier Reef coral spawning night trips from Cairns for divers and snorkellers, giving you the chance to see the action and return to Cairns.

Throughout the trip we’ll be serving a range of tasty refreshments to keep you fuelled, including:

  • Sausage rolls, meat pies, and feta & spinach pies
  • Spring rolls and samosas
  • Chicken karaage
  • Chorizo & kabana kebabs
  • Devilled buffalo wings
  • Italian meatballs
  • Pumpkin soup and bread rolls
  • Fresh melon platter
  • Tea, coffee and hot chocolate


Stay tuned for our 2022 dates!


5.30pm - 11.45pm (check-in 5pm)

Departure/Return Location:

Cairns Marlin Marina


  • Guided snorkel sessions
  • Full dive/snorkel equipment including torches, wetsuit/lycra suit and prescription masks
  • Equipment tuition
  • Hot refreshments (see above)
  • ​Tea, coffee and hot chocolate
  • Hot freshwater showers

We saw some fantastic spawning activity on our 2021 trip! Dates for 2022 coral spawning trips will be confirmed mid-year, depending on weather and other conditions.

Overnight Coral Spawning Trips

Don’t forget you can also join our overnight vessel during the coral spawning dates for another chance to view this weird and wonderful sight!

Additional info


  • Digital camera hire
  • Soft drinks, alcohol and snacks
  • Quality souvenirs
  • Professional dive guide ($15 per dive)

What to bring

  • Swimsuit and towel
  • Certcard and logbook for certified diving
  • Warm clothing and socks