Hikers Helen Bradford, 40, and Tanya Hehir, 46, were exploring the love tunnel near the Queensland town of Gympie, north of Brisbane, when they were caught up in the wild Boxing Day storms.
Robert Holden was with 11 other men on the 39-foot vessel in Moreton Bay, off the Brisbane coast, when the vicious storm rolled through about 4.50pm on Tuesday.
Almost 70,000 homes across Queensland s south-west remain without power after wild weather ripped down 900 power lines, leaving a trail of destruction in its wake.
Robert Holden has been identified as the third victim of boat capsize caused by the horrific conditions from storms that lashed Australia s east coast over the Christmas period.