Cascade Saddle Route, New Zealand
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New Zealand has danger appeal aplenty for adrenaline junkies but the 11-mile (18km) two-day Cascade Saddle Route is a true test of stamina. The gruelling trek, which crosses from the West Matukituki valley to the Dart Valley in Otago's Mount Aspiring National Park, rewards hardy hikers with spectacular alpine views.
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The route is prone to adverse weather and multiple deaths have occurred from falls and exposure. The slopes can be slippery year-round, but only the foolhardy would attempt the Cascade Saddle in the winter when the risk of avalanches is high (June to November is the peak time). The New Zealand Mountain Safety Council advises that the route is only suitable for experienced 'trampers' with navigation and high-level backcountry skills.