Much to everyone’s surprise, Joe gave the 1kg advantage to Rebecca rather than his brother Damien, a decision that stunned Michelle, who made the Reds train at the House. The other players trained on the beach with Olympic volleyball champions Kerri Pottharst and Natalie Cook. The Challenge was a triathlon at Sydney harbour, with kayaks, bikes and cars. The prize: a night on Cockatoo Island with one of their loved ones, who were watching the event from a cruiser on the Harbour. Lara, Joe and Leigh were left contesting the final round.