Mount Tasman is New Zealand's second-highest mountain, rising to a height of 3,497 metres. It is located in the Southern Alps of the South Island, four kilometres to the north of its larger neighbour, Aoraki/ Mount Cook. Unlike Aoraki/ Mount Cook, Mount Tasman sits on the South Island's Main Divide, on the border between Aoraki/ Mount Cook National Park and Westland Tai Poutini National Park. It is the highest point in Westland District.