Northern Beaches Council has approved a plan to install $2 million of public art along a new walkway from Manly to Palm Beach, in Sydney’s north. The 36-kilometre Coast Walk, which runs the length of the coastline between the two suburbs, is a combination of old, new and improved walkways and is slated for completion by 2020.

There are already 50 artworks along the route, and they will be joined by up to 30 more pieces. At least 10 works will be installed in the project’s first stage, with further pieces added in the second stage to round out the $2 million project.

Investments in artworks will range from $100,000 to $250,000 each, and the project has also been given $200,000 to install Aboriginal artworks and signage along the route. The council will soon release a tender for artists to submit proposals. The council will also develop an app to guide people along the track, pointing out both the artworks and areas of natural and heritage significance.

Several sites have already been selected for the first instalment of works. They include Manly Corso, Dee Why headland, Long Reef headland, Mona Vale’s north and south headlands, North Narrabeen rockpool and Pittwater park. The second stage’s works will be installed in areas including Manly Surf Life Saving Club, Dee Why rockpool and Avalon Beach. Third-stage installations will be dependent on funding.

“The artworks will add further vibrancy to the walk, as well as draw a direct connection between the villages, beaches and headlands stretching from the north to the south of the peninsula,’’ the Northern Beaches Council mayor Michael Regan said in a statement.

In the lead up to announcing the initiative the council consulted with the community and identified a couple of issues, including the need for Aboriginal heritage to be better integrated along the walk, and for views and vistas to be preserved and enhanced.

Twelve submissions from the public were received about the plan, with nine in favour of the project. Three were submitted against the plan, mainly taking issue with the use of council money for public art and remarking that the existing environment should be left alone.

Northern Beaches Council has not yet confirmed when the works will be installed.