Longer hikes through beautiful valleys, with options to traverse mountain saddles, include the Routeburn, the Dart/Rees River circuit, Greenstone/Caples and the Wilkin Valley tracks. In summer, it’s possible to walk from one valley to another over spectacular mountain passes. Shorter walks include Routreburn Nature Walk, Haast Pass Summit, Lake Sylvan near the lower dart River and the Blue Pools Walk. A highlight of any South Island adventure, the 30-minute Blue Pools Walk leads through silver beech/tahina forest and over a swing bridge to a viewing platform overlooking magnificent crystal-clear pools at the mouth of Blue River. In the past, Maori trekked through the region on their way to the pounamu fields of the west coast; Europeans visited to map, name and explore geographical features of the area; settlers attempted to farm and mine some of the valleys - the relics have blended into the stunning scenery.At its heart is a massive area of wilderness - glaciers, snowfields, mountains, valleys and wildlife habitats that require days of hiking to reach. To the west of the divide, where rainfall is plentiful, the beech forest comes with a sound track of birdsong and waterfalls.