Contestants (from left): Privilege Te Amo, 12, Lahkel Ratima, 11, and Nuku Ritchie, 16, warm up in the sauna after manuing into the 12°C Otago Harb...

Contestants (from left): Privilege Te Amo, 12, Lahkel Ratima, 11, and Nuku Ritchie, 16, warm up in the sauna after manuing into the 12°C Otago Harbour water during a Manu contest at Steamer Wharf, Dunedin, New Zealand. Photo: Derek Morrison