BEACHES along the North Coast are showing the damaging effects of the east coast low which struck with force on Wednesday night and yesterday morning.
The weather system brought big waves and coincided with king tides.
Main Beach at Evans Head was one of the hardest hit, with the ocean carving out a 2-3m embankment near the surf club.
The beach has suffered in recent months - it was also battered by heavy seas in December last year.
Several walkways leading to Lennox Head's Seven Mile Beaches were ripped away by the large swell yesterday.
Lennox Head Landcare's Malcolm Milner did a quick inspection of some beaches.
"Sharpes Beach seems to be badly eroded," he said.
"Seven Mile Beach has been cut back another metre or so - there are tracks which have collapsed and drop-offs.
"The beaches had started to recover after the last big tides.
"But the sand will come back - it always comes and goes.
"It really shows how important our dunes area, and that's why we do Landcare along the beaches and that's why the dunes are fenced off."
Byron Shire Council has also warned residents and visitors to take care on the beaches this week because of the heavy swells and king tides.
Executive manager of community infrastructure, Phil Holloway, urged people to take notice of any beach signage as it may not be safe to swim.