Volunteers have dragged three shopping trolleys and a big restaurant menu board from the Mandurah estuary in a clean-up ahead of the weekend Games.
Volunteer skipper Nigel Haines said his colleague Paul Dehncke came up with the idea on an afternoon walk around Dolphin Quay.
“We both live nearby and decided the estuary needed a good clean ahead of the Australasian Police and Emergency Services Games,” he said.
“We know there are a number of witches hats in the water and thought they detracted from the beauty of Mandurah.”
Mr Haines said they took out a boat and grappling hook on Thursday, October 25.
“Paul got the short straw and actually had to get in the water,” he said.
“We only had two and a half hours but we snagged three trolleys, five witches hat, a large restaurant-menu-board and a few other things.
“I am sure there is a lot more in there.”
Mr Haines said they would look into making the clean-up a regular exercise.
“We will probably work with the marine manager to make it ongoing,” he said.
“We want to make a chart and pinpoint the key areas.”
He said the Mandurah Volunteer Marine Rescue would be acting as marshals for the event this weekend, helping with the opening ceremony, fireworks and water-based events.