Mandoon Bilya BioBlitz: Community Festival Spotlights the Health of Our Rivers

Be part of bioblitz activities and a community celebration of the river.

The Mandoon Bilya (Helena River) is a significant landmark in the South West, supplying drinking water to Perth and the Goldfields. It is home to more than 40 Aboriginal heritage sites, including one of the oldest archaeological sites in Western Australia, dating back 29,000 years.

Taking place from 13–19 October, the Mandoon Bilya BioBlitz invites the community to explore the river’s cultural and ecological importance. Through guided activities with Noongar Elders and local scientists, participants will learn about the rich history, biodiversity, and ongoing impact of this vital waterway.

Led by the Bibbul Ngarma Aboriginal Association Incorporated, the initiative aims to “increase community knowledge on local biodiversity and river health,” says director Francesca Flynn.

"Participants will learn how Western and Noongar ways of caring for country can align to restore river health."

The week begins with BioBlitz activities in public parks along the lower river, surveying and recording plant and animal species in the area alongside scientists. Participants will have the opportunity to learn from Noongar Elders about the cultural and ecological importance of the river. This will offer insights into the region’s biodiversity while encouraging people to take part in science right in their own backyards.

Findings from the BioBlitz will help guide future river restoration efforts, with the aim of protecting these vital waterways for generations to come.

Following a week of discovery, the festival ends with a community celebration through the Mandoon Bilya BioBlitz River Festival. This free event features community stalls, family-friendly activities, performances, speakers, giveaways and more.

It’s a unique opportunity to learn about the waterways that supply our drinking water, hear from Noongar Elders and scientists about the river’s history and significance, and engage in local science that directly impacts the community.

The Mandoon Bilya BioBlitz runs from 13–19 October, with the River Festival taking place on Saturday 18 October from 10 am to 3 pm.

Find out more here