Can we leave it to nature?

This stretch of coast has always been vulnerable

The northern beaches sit in a naturally exposed part of the coastline.

Due to the shape of our coastline and predominant swell direction, the northern beaches are impacted by more wave energy than many other beaches.

This means erosion happens more often and more intensely, even without extreme storms.

Early development changed how the beach can respond

Some of the earliest beachfront development on the Gold Coast occurred here.

Buildings and infrastructure were constructed very close to the shoreline, particularly around Narrowneck and north of it.

This limits the natural ability of the beach to move, reshape, and recover after storms.

There is no space for large, healthy dunes to form

Natural dune systems need space and time to grow.

In this area, there is little room for wide, well-established dunes, which prevent erosion.

Without stable and healthy? With dunes, the coast becomes more vulnerable.

History shows nature alone hasn’t been enough

The City has had to step in multiple times because natural recovery was not sufficient:

  • 1975: ~1 million cubic metres of sand placed
  • 1999: ~1 million cubic metres of sand placed
  • 2025: ~1 million cubic metres of sand placed

These were not one-off decisions — they followed years of erosion, increasing maintenance, and declining beach amenity.

The expectation following the 2025 nourishment is that beaches will continue to slowly erode over time.

Doing nothing would mean worse outcomes over time

Population growth and beach use will continue to increase.

More people, infrastructure, and activity mean higher consequences when erosion occurs.

Without active management, erosion would happen more frequently, reduce beach width and usability and increase costs and disruption in the long run.

Nature still plays a role — but it needs help here

Natural processes are still important, but they can’t work alone in a constrained urban environment.

Active beach management helps: Restore natural buffers, buy time for recovery and maintain safe, usable beaches for the community

In some places, nature can recover on its own. On the Northern Beaches, history shows that it isn’t enough.

Carefully managed intervention is needed to protect the beach, the community, and the coastline into the future.



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