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The Divide, Fiordland National Park
6.8 km
3 hours
386 metres
If you are looking for a hike that delivers a massive "bang for your buck," the Key Summit Alpine Nature Walk in Fiordland National Park is hard to beat. Often described as the best short walk on the Milford Road, this trail offers a spectacular introduction to New Zealand’s alpine wilderness without requiring an elite level of fitness or a multi-day commitment.
The first half of the walk is a steady, gentle climb through a lush silver beech forest. This isn't just any forest; it feels like something straight out of a fantasy novel. Everything is draped in deep green moss, and the air is thick with the scent of damp earth and native ferns. As you zig-zag up the well-maintained switchbacks, keep an ear out for the gentle trickle of small waterfalls hidden within the gully. The canopy overhead is thick, providing a cool, sheltered environment that keeps you protected from the elements during the initial ascent.
As you gain elevation, the forest begins to change. The tall beech trees start to shrink and thin out, eventually giving way to subalpine shrublands. The transition is fascinating—one minute you’re in a dense woodland, and the next, the horizon begins to peel open.
Once you reach the turn-off for the Key Summit loop, the terrain flattens out into an ethereal landscape of alpine tarns (small mountain lakes), mossy bogs, and resilient tussock fields. A sturdy wooden boardwalk carries you across this fragile environment, protecting the delicate alpine plants from tramping boots. Walking along this boardwalk feels like walking across the roof of the world. The "moderate" difficulty rating comes mainly from the steady incline, but the track is so well-graded that most families find it a breeze.
Ample parking is available at The Divide car park, located approximately 85 km along the Milford Road from Te Anau. This is the official starting point for the Key Summit Alpine Nature Walk and the Routeburn Track. The car park also has a shelter and information boards.
Get DirectionsKeep an eye out for these native and local bird species along the trail
Best time: Year-round
Petroica australis
New Zealand robins are known for their tameness and often approach hikers closely, especially in forested areas.
Best time: Year-round
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Out and back
To the north, you can look straight down the throat of the Hollyford Valley, a deep, glaciated trench that looks like it was carved by a giant’s axe. To the west, the rugged, snow-capped peaks of the Darran Mountains dominate the skyline. One of the most photogenic sights is Lake Marian, a stunning alpine lake cradled in a "hanging valley" across the way. From this height, the lake looks like a sapphire nestled among the grey stone peaks.
Make sure you take the time to walk the full Alpine Nature Walk loop at the summit. This self-guided section is dotted with interpretive signs that explain the "Key" in Key Summit. This location is a rare geographic crossroads—a triple watershed. Depending on exactly where a raindrop falls here, it could end up flowing into the Hollyford River to the Tasman Sea, the Eglinton River to the South Pacific, or the Glaisnock River toward the Southern Ocean. It’s a humbling thought to stand at the very point where the island’s waters decide their destiny.
The Divide is a major hub, serving as the western trailhead for the Routeburn Track, so ample parking is available. However, because this is one of the most popular spots in Fiordland, the car park can fill up quickly during the peak summer months (December to February). There is a sheltered area with benches and informative displays at the car park—perfect for a final gear check before you head up. Please note that while the walk is family-friendly, it is located within a National Park, so it is not dog-friendly.
In the lower beech forest, keep your eyes peeled for the New Zealand Robin (toutouwai). These friendly little birds are incredibly inquisitive and will often hop right up to your boots to see if you’ve stirred up any tasty insects in the leaf litter. You’ll also likely hear the melodic, bell-like chiming of the Bellbird (korimako) and the distinctive "whoosh-whoosh" of the Kererū (New Zealand Pigeon) flying overhead.
As you reach the subalpine scrub near the summit, keep a sharp eye on the sky for the Kea. These world-famous alpine parrots are highly intelligent and notoriously cheeky. If you see one, keep a close watch on your backpack! While they are a joy to watch, please remember never to feed them, as it harms their ability to survive in the wild. You might also spot a Weka skulking through the tussocks—a flightless bird that looks a bit like a sturdy brown hen and shares the Kea's curious personality.
What to Bring: Fiordland is one of the wettest places on earth. Even if it’s sunny in Te Anau, the weather at The Divide can turn in minutes. Always carry a waterproof rain jacket and an extra warm layer (merino or fleece). Sturdy walking shoes or hiking boots are recommended, as the track can be slippery when wet. Bring plenty of water and some high-energy snacks to enjoy at the summit while you soak in the views. Sun protection is also vital; the NZ sun is fierce, especially at elevation.
Geologically, the landscape is a masterclass in glaciation. The U-shaped Hollyford Valley was carved by massive glaciers during the last ice age, leaving behind the sheer cliffs and "hanging valleys" like the one containing Lake Marian. Standing at the summit, you are witnessing the results of millions of years of tectonic uplift and glacial erosion. It is part of Te Wahipounamu, a UNESCO World Heritage site, recognised for its outstanding natural value to humanity.
If you're heading back to Te Anau, make a stop at Miles Better Pies. It’s a local institution, and their venison or steak pies are the ultimate post-hike fuel. For something more substantial, the Redcliff Cafe offers a cosy, rustic atmosphere with a great selection of local wines and hearty Kiwi fare. If you just need a caffeine hit and a slice of cake, Sandfly Cafe is a favourite among trampers for its relaxed vibe and great views of Lake Te Anau.
Whether you're a seasoned hiker or a casual traveller, the Key Summit Alpine Nature Walk is a quintessential Fiordland experience. It’s a short walk that leaves a long-lasting impression.
Hemiphaga novaeseelandiae
New Zealand wood pigeon, a large native bird with iridescent green and purple plumage. Important for seed dispersal of native trees.
Best time: Year-round
Anthornis melanura
Renowned for its melodious, bell-like song, it plays a vital role in pollinating native plants.
Best time: Year-round
Nestor notabilis
Intelligent alpine parrot endemic to the South Island. Known for curiosity and problem-solving abilities.
Best time: Year-round
Gallirallus australis
Flightless rail known for bold, inquisitive behaviour. Found mainly in the South Island and some offshore islands.
Best time: Year-round