Many locals are describing this week's king tides as the biggest and most damaging in memory.

All of Wollongong's beaches were closed as the combination of a huge swell and the surging tides made conditions extremely dangerous.

Massive amounts of sand were dumped, stripped from the beaches, leaving the coast badly scarred and many tens of thousands of tonnes dumped onto the foreshore.

Austinmer, Thirroul and Port Kembla Beach carparks looked more like a beach with large deposits of sand covering the bitumen.

Council staff were busy on Thursday and Friday scraping clear the popular Austinmer car park ahead of what's expected to be another busy weekend; the last before the end of daylight saving (remember, daylight saving ends in the early hours of this Sunday morning).

Large amounts of sand were also deposited in the outdoor dining area of the Thirroul Pavilion cafe. Staff spent hours shovelling to clear the area.

Both the Thirroul and Continental Pools were closed due to the extreme weather's impact on water quality. Council said the ocean rock pools were also being monitored.

Council staff continue to monitor the impact of the coastal flooding and erosion along the beaches and foreshore areas. A number of damaged beach access paths have been closed as a safety measure and the public has been advised to avoid them.

A Council statement advised: "As the large swells recede, it's anticipated some beach locations will also have scraping and erosion, with the community warned not to dig into eroded sand areas or dunes, as these will be unstable and susceptible to collapse."

Ahead of what's expected to be a sunny weekend, Wollongong's Lord Mayor Cr Tania Brown urged beachgoers to take all precautions to stay safe.

"Unfortunately, Wollongong has been no stranger to extreme weather events in recent times and our staff are working hard to keep the community safe," Cr Brown said.

"I encourage everyone to take note of signage, be it at a beach and pool closures, or notification of works being carried out at different locations to ensure our favourite swimming and leisure spots can be safely enjoyed."