A third person has drowned in the Gold Coast surf in the space of two days as several beaches close on the strip due to dangerous conditions.
The male swimmer in his 30s was pulled unresponsive from the water about 7:40am on Saturday at Mermaid Beach, south of Broadbeach.
"(By) the time he was back on the beach, he was in cardiac arrest," Queensland Ambulance senior operations supervisor Jayney Shearman said.
"The surf life savers had initiated CPR on scene ... from that time they put a lot of effort in and worked hard for about half an hour, but unfortunately the gentleman was declared deceased at the scene.
"It's a terribly sad day ... it affects so many people."
It comes after a man and woman drowned following a late-night swim on Friday in big surf.
The pair were initially seen going into the ocean at Old Burleigh Rd, Broadbeach, about 9.20pm on Thursday.
The woman, in her late 20s, was found laying unresponsive on the beach about an hour later. She was pronounced dead at the scene.
The body of the man, believed to be in his early 30s, was found later on Friday night at Narrowneck.
Several beaches are closed on the Gold Coast due to dangerous conditions caused by ex-tropical cyclone Lucas, and swimmers are reminded to stay between the flags.
Beaches from Fourth Avenue in Burleigh to The Seaway are closed, while beaches from Burleigh to Rainbow Bay remain open but are being monitored.
Swells of up to two metres have been recorded.
"We ask everyone on the Gold Coast north of Burleigh to not enter the water today," Surf Life Saving Queensland's Nathan Fife said.