Mike Potts / New Zealand scaup (Aythya novaeseelandiae) on Lake Wanaka, South Island, New Zealand.

Colin Monteath / Trekkers on Buchanan Peaks looking towards Mount Aspiring, Lake Wanaka, New Zealand

Colin Monteath / Trekkers on Buchanan Peaks with Mount Aspiring behind, Lake Wanaka, New Zealand

Colin Monteath / Dawn panorama from Rocky Hill above Diamond Lake, with Black Peak and Mount Aspiring, Matukituki Valley near Wanaka, Otago, New Zealand

Colin Monteath / Sea of clouds cover Lake Wanaka, seen from Mount Roy, sunrise over Southern Alps, Otago, New Zealand

Colin Monteath / Clouds over Lake Wanaka from Mount Roy with Mount Aspiring on left, Otago, New Zealand

Colin Monteath / Old farm cottage on sheep farm beside Lake Wanaka, New Zealand

Colin Monteath / Tussock Grass on the slopes of Mt Roy above Lake Wanaka, autumn, Central Otago, New Zealand

Colin Monteath / Mt Roy, campsite above Lake Wanaka, autumn, Central Otago, New Zealand

Colin Monteath / Hiker on Mt Roy with Mt Aspiring in the distance above Lake Wanaka, Central Otago, New Zealand

Mark Taylor / Lake Wanaka in flood, South Island, New Zealand.

Colin Monteath / Trekkers on Buchanan Peaks with Mount Aspiring behind, Lake Wanaka, New Zealand