The Tongan flag-bearer's secret has been revealed: it was coconut oil that kept him warm when he paraded half-naked at the opening ceremony. Pita Taufatofua braved bitter cold to go topless, where real-feel temperatures were down at minus 10 degrees Celsius. But while many wondered how he could march in only a traditional skirt and sandals without getting frostbite, the answer lies in the oil he had liberally applied to his torso. "Pita secretly brought his tiny bottle of coconut oil in his pocket," Louise Waterhouse, Tonga's Honorary Consul in Sydney, said. "And just before Tonga's marching time, when the march organisers saw what Pita was doing, they were then so helpful and even gave him a little side room to keep warm immediately before the entrance to the stadium!"