But now, the public is being asked to help keep a section of the 120km coastal strip safe.
The Cockburn Sound Coastal Alliance, formed in 2011 by the cities of Cockburn, Kwinana, Rockingham and Fremantle, is hosting a focus group to develop coastal adaptation plans.
The aim is to future proof the sound from the impacts of climate change, including a rise in sea level, erosion and storms.
With the sound a popular recreation and cultural spot, Coastal Project co-ordinator Craig Perry said it was vital the public are involved in planning for its future.
�As Perth�s population grows, so too will the impact on our coasts � from development and from environmental factors such as climate change,� he said.
The focus group will be held on Wednesday at the Gary Holland Community Centre in Rockingham from 5.30pm to 7pm.
For information phone 0459 787 888.