A new 180-metre seawall has been installed at Cape Peron in Rockingham to help combat coastal erosion in the area.
Almost 9000 tonnes of locally sourced limestone was used in replacing the original seawall which had partially collapsed over time, posing a risk to visitors.
The seawall was designed by local company BMT Consulting and constructed by WA Limestone, and has been built to cope with rising sea levels and the force of the waves, protecting the pathway and sand dunes.
The $1.45 million project was partly funded by the McGowan Government's WA Recovery Plan, and created dozens of jobs during its design and construction.
"Cape Peron is well-loved by generations of Western Australians. It's fantastic to see another WA Recovery Plan project completed, creating local jobs and protecting our environment," Premier and Rockingham MLA Mark McGowan said.
"It is only fair we now protect the area from storms and erosion, so it can continue to be safely enjoyed by the community for years to come."
Cape Peron is known for its protected beaches, limestone cliffs, reefs and panoramic views.
It was one of Western Australia's coastal defence sites during World War II and is part of Rockingham Lakes Regional Park, which attracts more than 600,000 visits per year.