Aboriginal Australian Traditionscreation
The Wagyl and the Derbarl Yerrigan

Shared publicly by Whadjuk Noongar people: in the Nyitting, the creation time, the Wagyl moved across the land and shaped the Derbarl Yerrigan (Swan River) and the waterways of the Perth region.
An editorial retelling
The story
Whose story this is
The Wagyl belongs to the Noongar people of the south-west of Western Australia, and this story in particular to the Whadjuk Noongar, whose Country includes the city of Perth and the Derbarl Yerrigan, the Swan River. Noongar organisations, including the South West Aboriginal Land and Sea Council through its Kaartdijin Noongar (Noongar Knowledge) project, and local councils working with Noongar Elders share this story publicly. The summary below follows those public tellings; Noongar people tell it in their own ways, and some Wagyl knowledge is not public.
The Nyitting
Noongar people speak of the Nyitting, the creation time, often translated as "the cold time", when the land took its present shape. In the Nyitting, the Wagyl, a great serpent being, moved across the land. As it travelled, its body carved out the land, and its tracks became the rivers, lakes, and wetlands. The Derbarl Yerrigan, winding from the hills to the sea through what is now Perth, follows the Wagyl's movements.
Resting places
Along the river are places where the Wagyl rested, and these are important to Whadjuk Noongar people. One such place is associated with the foot of Kaarta Gar-up (Mount Eliza, below Kings Park), at Goonininup, near a freshwater spring. The Wagyl continues to be present in the waters it made, and Noongar people have responsibility for caring for them.
Protecting the Wagyl's places
In 1989 Noongar people began a long protest against the redevelopment of the Old Swan Brewery site at Goonininup, because of its association with the Wagyl. The protest became one of the best-known Aboriginal heritage struggles in Western Australia. Although the redevelopment eventually went ahead, the campaign brought wide public attention to Noongar connections to the river, and to the Wagyl as a living part of Noongar law rather than a figure of the past.
Water and responsibility
The Wagyl is associated with fresh water, and Noongar people describe the Wagyl's waters as places to be respected. Some tellings say the Wagyl should not be disturbed, and that certain places should be approached only with care. In a dry region, the story connects people to the sources of fresh water and to the obligation to protect them.
Many waterways
Wagyl stories are told across Noongar Country, not only in Perth, and connect other rivers, lakes, and wetlands of the south-west. Different Noongar groups tell them differently. Readers who want to know more should seek out the tellings of Noongar Elders and organisations.
A note on names
The Swan River's Noongar name is often spelled Derbarl Yerrigan, and the Wagyl's name Wagyl, Waugal, or Waakal; Noongar spelling varies because the language was written down by many different people. This site uses the spellings found in current Noongar-led public sources.
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Highlights
In the Nyitting the Wagyl moves across the land, and its tracks become the rivers and wetlands; the Derbarl Yerrigan winding through Perth follows its course, and its resting places remain in Whadjuk Noongar care.
Why it matters
The Whadjuk Noongar account of the origin of the Swan River and the waterways of the Perth region, central to Noongar heritage campaigns including the protests at Goonininup from 1989.
Other versions
1 alternate account in the catalog.
Other Noongar groups
Wagyl stories are also told for other rivers, lakes, and wetlands across Noongar Country, differently by different groups.
Note: This summary follows a publicly shared telling. It is not the full story, and restricted parts are not included; the people named are its custodians.
Sources and further reading
By Elizabeth Stein for Mythos Atlas. About the author. Editorial notes are grounded in the site's cited sources and can be challenged through the contact page.
Works cited
Kaartdijin Noongar: Noongar Knowledge
South West Aboriginal Land and Sea Council
City of Swan