Whitsundays Revealed as a Major Humpback Whale Calving Area

A strange whale behavior reported by tourism operators in 2009 ultimately helped reveal one of the Great Barrier Reef’s most important humpback whale calving areas. Operators in the Whitsundays region had been seeing whales float upside down with their tails raised above the water. The behavior, known as “fluking,” was unfamiliar even to whale researchers. Their reports were submitted through the Reef Authority’s Eye on the Reef network, prompting scientists to investigate. The resulting research combined tourism operators’ observations with seafloor mapping, water-temperature monitoring, satellite tracking and aerial surveys. In one year, participants recorded sightings of 780 adult whales and 153 calves in the Whitsundays. According to reporting by Phys.org, the research showed that the unusual behavior was connected to breeding. The area’s sheltered, warm and shallow waters provide conditions humpback whales need to give birth and raise their young. The findings helped answer a longstanding question about where humpback whales on the Great Barrier Reef calve. The discovery contributed to the creation of the Whitsundays Whale Protection Area. The area has additional rules governing interactions between people and whales, including vessel and aircraft approach limits and a ban on swimming with whales. Breaches of the regulations can be enforced by law. The region was also designated a Whale Heritage Area in 2024 by the World Cetacean Alliance. Phys.org reports that it is the only place in the world with a Whale Heritage Area located within a UNESCO World Heritage Area. The designation recognizes conservation, community education and responsible tourism efforts. Current marine-park rules require vessels to stay at least 100 meters from whales in general waters. A 300-meter exclusion zone applies around whale calves and throughout the Whitsundays Whale Protection Area, while jet skis must remain at least 300 meters away. Aircraft and drones may not fly below 1,000 feet, and people are instructed not to swim toward or disturb whales. The Reef Authority continues to encourage visitors and tourism operators to report whale sightings through Eye on the Reef and to minimize disturbances during the whale season.