She and Bryant were reported to have been submerged for less than five minutes when she rose to the surface of the water in what was described as obvious distress. She was helped into the boat, where she complained of nausea, abdominal pain and breathing difficulties.
The boat started heading back towards the coast, but when Houtz lost consciousness the alarm was raised, and occupants started administering CPR.
A search & rescue boat met the Down Under about a mile offshore, and a paramedic came aboard to treat Houtz using a defibrillator and oxygen. She was taken to hospital, but pronounced dead at 3.15pm.
Detectives said that Houtz’s death appeared to be accidental, but an investigation was launched, with the medical examiner’s office carrying out a post mortem to establish the cause of death.