New Zealand manages 13 national parks covering approximately 30,000 square kilometers, roughly 11 percent of the country's total land area. The Department of Conservation (DOC), established in 1987, administers these parks along with three maritime parks, hundreds of conservation areas, and the country's walking track network. The national parks system began in 1887 when Ngāti Tūwharetoa paramount chief Horonuku Te Heuheu Tūkino IV gifted the peaks of Tongariro, Ngāuruhoe, and part of Ruapehu to the Crown to prevent European land sales. This gift created Tongariro National Park in 1894, the fourth national park established worldwide and the first formed through indigenous donation. The National Parks Act 1980 currently governs management policy, requiring preservation of natural features and indigenous flora and fauna while allowing public access and recreation where compatible with conservation.
Fiordland National Park occupies 12,607 square kilometers in the southwestern corner of South Island, making it New Zealand's largest park and one of the world's largest protected areas. The park extends from the Hollyford Valley south to Preservation Inlet, encompassing 15 major fiords carved during Pleistocene glaciations. Milford Sound/Piopiotahi, the park's most visited location, receives approximately 650,000 visitors annually despite rainfall averaging 6,813 millimeters per year, among the world's highest totals. The Milford Track, opened in 1888 and marketed as "the finest walk in the world" since the early 1900s, traverses 53.5 kilometers from Lake Te Anau to Milford Sound over four days. DOC limits Milford Track numbers to 40 independent walkers per day during the October-to-April season, with advance bookings typically filling within minutes of opening six months ahead. The Routeburn Track, a 32-kilometer alpine route between Fiordland and Mount Aspiring National Park, crosses Harris Saddle at 1,255 meters elevation. Fiordland contains New Zealand's only breeding population of the flightless takahē, a rail species thought extinct until rediscovery in the Murchison Mountains in 1948. The current population stands at approximately 500 birds, with intensive management including supplementary feeding and predator control.
Aoraki/Mount Cook National Park surrounds New Zealand's highest mountain, Aoraki/Mount Cook at 3,724 meters, though this height decreased from 3,764 meters after a rock and ice collapse in 1991 removed the summit. The park covers 707 square kilometers and contains 23 peaks exceeding 3,000 meters. The Tasman Glacier, New Zealand's longest at 23 kilometers, has retreated approximately 180 meters per year since measurements began in the 1970s, with its terminal lake first appearing in the 1970s and now extending over 7 kilometers. Climbers attempting Aoraki/Mount Cook face a success rate near 30 percent, with approximately 80 fatalities recorded since 1851 when local Māori guides led European surveyor Thomas Brunner to its base. Edmund Hillary trained on Aoraki/Mount Cook before his 1953 Everest ascent, making his first summit in 1948. The park forms part of Te Wāhipounamu, a UNESCO World Heritage Area established in 1990 that encompasses 26,000 square kilometers across Fiordland, Mount Aspiring, Westland Tai Poutini, and Aoraki/Mount Cook national parks. This designation recognizes the area's Gondwana geology, active tectonic processes, and intact ecosystem spanning from coastal fiords to alpine peaks within 40 kilometers horizontal distance.
Tongariro National Park became New Zealand's first park in 1894 when Te Heuheu Tūkino IV, facing pressure from European land buyers, placed the sacred volcanic peaks under Crown protection with the understanding they would remain preserved. The park initially covered approximately 26 square kilometers around the summits before expanding to its current 796 square kilometers. Three active volcanoes dominate the landscape: Tongariro with its multiple vents and craters, Ngāuruhoe forming a near-perfect cone at 2,287 meters, and Ruapehu reaching 2,797 meters as North Island's highest point. Ruapehu erupted most recently in 2007, with major 20th-century eruptions in 1945, 1995, and 1996. The 1953 Tangiwai disaster occurred when Ruapehu's crater lake burst, sending a lahar down the Whangaehu River that destroyed a railway bridge minutes before the Wellington-Auckland express crossed, killing 151 people on December 24. The Tongariro Alpine Crossing, a 19.4-kilometer one-day track, attracts approximately 130,000 walkers annually who traverse between Mangatepopo and Ketetahi over summit saddles at 1,600 meters elevation. The route passes Red Crater, Blue Lake, and the Emerald Lakes, volcanic features colored by minerals including sulfur and iron oxides. Tongariro gained dual UNESCO World Heritage status in 1993, the first property worldwide recognized for both natural and cultural significance, acknowledging both its volcanic landscape and its sacred status to Ngāti Tūwharetoa.
Abel Tasman National Park, New Zealand's smallest at 237 square kilometers, occupies the northern tip of South Island between Golden Bay and Tasman Bay. The park was established in 1942, coinciding with the 300th anniversary of Abel Tasman's 1642 arrival at Golden Bay, though his landing occurred outside current park boundaries. The Abel Tasman Coast Track extends 60 kilometers along granite-fringed beaches and coastal forest, accessible at multiple points and typically walked over three to five days. Unlike most New Zealand tracks, the Coast Track requires tidal awareness at several points where high water makes passage difficult or impossible. The park receives approximately 270,000 annual visitors, with water taxis operating scheduled services between Kaiteriteri, Mārahau, and Tōtaranui from September through May. Tōtaranui Beach, a DOC campground within the park, contains 850 campsites that fill completely during the December-January peak despite advance booking requirements. Split Apple Rock, a granite boulder cleaved by ice and erosion into two hemispheres, sits in tidal waters near Kaiteriteri and appears in most park promotional imagery despite technically lying outside park boundaries. The park's relatively dry climate, receiving 2,000 millimeters annual rainfall compared to 7,000-plus on the West Coast 100 kilometers south, supports mixed podocarp and beech forest rather than the temperate rainforest dominant elsewhere.
Mount Aspiring National Park covers 3,555 square kilometers along the Southern Alps from Haast Pass south to the Humboldt Mountains. The park includes Mount Aspiring/Tititea at 3,033 meters, a pyramidal peak first climbed in 1909 by Jack Clarke and guides Alex and Peter Graham. The Rees-Dart Track forms a 70-kilometer circuit through the park's northeastern section, connecting Glenorchy at Lake Wakatipu's head to the Dart River Valley over Rees Saddle at 1,447 meters. The Wilkin and Siberia valleys on the park's western side offer wilderness tramping accessible primarily by helicopter, with Siberia Experience offering combined flight-walk-jetboat trips since the 1990s. The park shares its western boundary with Westland Tai Poutini National Park along the main divide, where precipitation gradients produce annual rainfall exceeding 10,000 millimeters on western slopes while eastern valleys receive under 2,000 millimeters. Blue Pools, a short walk from Haast Pass Highway near the park's northern boundary, features meltwater-fed pools with visibility exceeding 10 meters due to glacial flour settling before water reaches these channels. The Matukituki River valley provides the main access corridor, with road access ending at Raspberry Creek approximately 60 kilometers from Wānaka where walking tracks continue upstream toward Mount Aspiring hut.