The community are invited to attend Mandurah's World Cleanup Day event on Saturday September 21.
Hosted by Coastal Waste Warriors, the cleanup will take place along the Dawesville Cut from 9am to 11am.
This is the third event at this location, with fishing line in the top five items picked up.
Last week, a young Mandurah dolphin died as a result of fishing line entanglement - his third time having line caught on his dorsal fin this year.
The Coastal Waste Warriors said on a Facebook post everyone is encouraged to attend the event.
"It's time to get back to this area to make a difference and spread awareness to our wider community, that littering is NOT OK as this is having a devastating effect on our marine life - we are seeing this first hand," the post read.
"Please be SunSmart, bring your filled reusable water bottle and BYO gloves if possible."
The meeting point for the cleanup is at the Port Bouvard Marina car park.
For more information, head to https://www.facebook.com/events/1311452692357329/.
Passenger critically injured in West Pinjarra crash
Unregistered painter fined for requesting hefty deposit from Singleton homeowner and not doing the job
Police hunt driver following dangerous Baldivis pursuit
Welfare concerns for boy last seen at Port Kennedy skate park
Rubbish truck catches fire in Baldivis
Driver injured in bus crash in Rockingham
Lark Hill Sportsplex to undergo $3 million floodlighting upgrades
Arson Squad investigate Bunbury house fire
Construction begins on new Mandurah Hospital