A luxury Laguna Beach resort is moving guests off its first floor as pounding Pacific surf threatens Southern California, with coastal flooding and significant beach erosion forecast from Sunday through Thursday.

The Surf & Sand Resort is taking extra precautions as waves batter the beachfront property, with a hotel employee telling The California Post that no guests will be placed on the first floor because of the threat.

“We are putting no guests on the first floor,” the employee said, describing the move as an abundance of caution. The worker said the building itself had not been damaged and had withstood major storms in the past.

But the resort’s precautions underscore a broader threat facing coastal communities across Southern California, where elevated tides and disappearing beaches are leaving homes, businesses and public infrastructure increasingly exposed.

The National Weather Service in Los Angeles warned that minor to moderate coastal flooding is likely from Sunday through Thursday, with high tides reaching 7.5 to 8 feet — as much as 1.5 feet above projections.

“HEADS UP!!!!” the agency warned, adding that moderate to significant beach erosion was likely and that some areas could face upgraded warnings.

California’s Office of Emergency Services said a Coastal Flood Advisory would remain in effect along the state’s coast from Oct. 25 through Oct. 29, with Coastal Flood Warnings issued for Orange and San Diego counties.

At Surf & Sand, a newly circulated Instagram video purporting to show a section of the resort’s oceanfront seawall collapsing has added to concerns about the pounding surf. The extent of any structural damage has not been independently confirmed.