Champion Australian snowboarder Alex 'Chumpy' Pullin has tragically died while spearfishing on the Gold Coast.
Pullin, 32, was found unresponsive on an artificial reef off Palm Beach on Wednesday morning.
It's understood he suffered a medical episode.
"The QAS received a phone call to support the lifeguards down here, where they were attempting to retrieve and resuscitate a 32-year-old male, who was found on the bottom of the ocean," Queensland Ambulance Service offer Justin Payne said.
"The patient was found at the bottom of the reef, (and) was brought to the top by another snorkeller and brought in by lifeguards.
"The resuscitation attempt was for approximately 45 to 50 minutes with CPR the entire time. Unfortunately, the patient (did not) survive."
The incident is now under police investigation.
Pullin was a two-time world champion and three-time Olympian.
He was Australia’s flag-bearer at the 2014 Winter Olympic games in Sochi.