Dee Why Black Swans Raise New Cygnets at the Lagoon This Summer

Dee Why black swans are thriving at the lagoon this summer, with fluffy cygnets marking the continued return of a species that once abandoned the waterway but now symbolises the suburb’s environmental recovery.



The downy youngsters have been spotted paddling around the lagoon with their protective parents, making the most of calm conditions while the water was closed to the public until the middle of January. For Dee Why residents, seeing Dee Why black swans raise their young at the lagoon represents decades of environmental restoration work finally paying off.

From Abandonment to Recovery

Dee Why black swans were once so numerous at the lagoon that the bird became embedded in local identity. Early 20th century, photographs captured 24 black swans on the water at once, enough that local organisations including Dee Why Public School, the bowling club and surfing fraternity all adopted the black swan as their emblem.

By the end of 20th century, the swans had completely abandoned Dee Why Lagoon. Unhealthy water quality, a silted bottom and rubbish-strewn foreshore made the habitat unsuitable for the native species that had defined the area for generations.

Dee Why lagoon
Photo Credit: Alan Chen/Google Maps

The turnaround came through consistent effort. Volunteers from Friends of Dee Why Lagoon worked alongside dedicated restoration specialists to clean up the waterway. Black swans began returning to Dee Why Lagoon, just as they returned to Narrabeen Lagoon after similar restoration work.

A Painted Swan That Brings Good Luck

The black swan’s importance to Dee Why lives on in an unusual local tradition. Sometime in the 1920s, someone painted a black swan on the footpath outside 103 Howard Avenue. That painting became a neighbourhood icon with special meaning—stepping on the painted swan brings bad luck.

Over nearly a century, anonymous artists have kept the tradition alive by repainting the swan whenever it fades. The most recent refresh happened in 2020, when the swan was carefully restored onto newly replaced pavement. The painting has grown over the years, now spanning two paving stones instead of one.

Black swan painting
Photo Credit: Travel with Joanne

Worn grass on either side of the painted swan hints at how seriously locals take the superstition. Residents and visitors alike carefully step around the artwork, maintaining a tradition that connects modern Dee Why to its environmental heritage.

Both the painted swan and the lagoon catchment area appear along the Dee Why Heritage Walk, a 3.5 kilometre loop showcasing the suburb’s architecture, art, memorials and natural landmarks.

Protecting the Newest Generation

The current clutch of cygnets hatched under ideal conditions. With the lagoon temporarily closed, predators stayed away and rough water couldn’t threaten the vulnerable chicks. The parent swans—which pair for life and form strong bonds—have been teaching their young to navigate the local environment.

Anyone spotting the fluffy grey cygnets should keep their distance. Parent black swans actively defend their offspring from any perceived threat, no matter how well-meaning the approach might be.

The chicks are thriving thanks to the collaborative efforts of local Bushcare volunteers and dedicated beach and waterway monitors. These groups work together to maintain the wetland environment that now supports breeding black swans once again.

Black swans photographed
Photo Credit: Friends of the Dee Why Lagoon/Facebook

Success at Dee Why Lagoon shows what’s possible when communities commit to environmental restoration. The sand dune separating the lagoon from the ocean tells a similar story—once almost bereft of vegetation, it now supports dense native growth that stabilises the dune and provides habitat for local birds.

For Dee Why residents who remember when black swans were absent from the lagoon, watching new cygnets paddle through the water represents more than just a pleasant summer sight. It confirms that environmental recovery, while slow, delivers lasting results.

More information about Dee Why Lagoon Wildlife Refuge is available at northernbeaches.nsw.gov.au.



Published 25-January-2026.

Preserving Dee Why Lagoon: A Century-Long Fight for Nature in the Suburbs

The preservation of Dee Why Lagoon stands as one of the Northern Beaches’ earliest and most hard-fought environmental victories—a battle that spanned decades and pitted local advocates and council against development pressures and a powerful landowner. Today, the peaceful estuary offers sanctuary to birdlife and a breath of nature for the community, but its survival was never guaranteed.


Read: Dee Why Divided Over Plans for Outdoor Gym at James Meehan Reserve


For more than a century, Dee Why Lagoon faced the threat of being carved up, filled in, or built over. Though smaller and less prominent than nearby Narrabeen Lagoon, its ecological and scenic value is just as vital to the character of Dee Why and Collaroy. Saving it required tireless effort, strategic negotiation, and a deep belief in the value of public green space.

View north across Dee Why Lagoon and Long Reef, c 1890 (Photo credit: Northern Beaches Council Library Local Studies)

The lagoon’s troubles began with land grants in the early 1800s. After passing through several owners, the area around the lagoon was inherited by Elizabeth Jenkins, who eventually donated it to the Salvation Army in exchange for an annuity. The Army believed it owned not only the land but the lagoon itself, arguing that it was a self-contained lake. That claim was overturned in 1910 when the High Court declared the lagoon an estuary of the sea—and thus Crown land.

However, the lagoon was still effectively off-limits to the public, surrounded entirely by land under the Army’s control, including the sand spit that separates the lagoon from the ocean. In the decades that followed, the Army repeatedly attempted to subdivide and sell portions of the land, particularly the sand spit, prompting growing concern among locals and environmental advocates.

 Dee Why Lagoon
View over Dee Why Beach and Lagoon from headland, ca 1920 (Photo credit: State Library of NSW)

Warringah Council, backed by groups such as the Wildlife Preservation Society and the Parks and Playgrounds Movement, pushed to acquire the land for public use. But progress was slow. The Army initially demanded £10,800—an unaffordable sum during the Great Depression. 

Dee Why Beach and Lagoon (Photo credit: State Library of New South Wales)

The council tried various angles, from asking the state government for financial help to proposing a small rate levy on local residents. After years of back-and-forth, the Army finally accepted a reduced price of £6,200 in 1936, and generously donated the sand spit—on the condition that the council covered legal costs. The deal was finalised in 1937.

 Dee Why Lagoon
Tank traps dating from World War II in Dee Why Lagoon (Photo credit: CC BY-SA 3.0/Terovian/Wikimedia Commons)

Ironically, public ownership brought new challenges. The southern end of the lagoon was used as a rubbish tip, later becoming the site of a park. Wetlands were reclaimed for housing and light industry. Still, enough of the lagoon was preserved to provide an enduring refuge for wildlife and a reminder of what was saved—and what was lost.


Read: Dee Why Beach Incident Highlights Shark Net Controversy, Removal Being Considered


Dee Why Lagoon remains a case study in environmental persistence. Its protection didn’t come easily, and its current state reflects both the triumphs and compromises of urban conservation. In a rapidly developing city, the lagoon endures as a symbol of what a community can achieve when it decides that nature is worth the fight.

Published 11-April-2025