Beach parties could be off-limits for thousands of schoolies on the Gold Coast this year because of significant erosion brought on by Cyclone Alfred.

The warning comes amid a national report finding up to 185,000 residential buildings in Queensland could be in "very high-risk areas" if climate change is not addressed.

More than 120,000 properties remain without power across south-east Queensland and northern New South Wales on Tuesday as residents deal with the aftermath of ex-Tropical Cyclone Alfred. While the ...