Mount Aspiring National Park
Mount Aspiring National Park lies in the Southern Alps of New Zealand's South Island, in the headwaters of Lake Wanaka. It is part of the UNESCO World Heritage Site of South West New Zealand, or Te Wahipounamu, which includes Fiordland National Park (to the south), Aoraki Mount Cook National Park and Westland National Park (both to the north).
This is about as remote as you can get in New Zealand, without getting off-road. Make sure your petrol tank is full and your car is in good working order.