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Coldwater Hut, Nelson Lakes National Park
13 km
6 hours
1030 metres
If you are looking for a tramp that truly captures the wild, untamed spirit of the South Island, look no further than the journey from Coldwater Hut to Angelus Hut. This isn't just a walk; it’s an ascent into another world. Nestled in the heart of Nelson Lakes National Park, this segment of the Travers-Sabine Circuit—known as the Travers-Cascade Track—is widely considered one of the most spectacular, yet physically demanding, routes in New Zealand.
While it’s only 13 kilometres, don’t let the distance fool you. With over 1,000 metres of vertical climbing and some technical river work, this is a mission for those who like their boots dirty and their views hard-earned. It is an Expert-level route that demands respect, preparation, and a good set of lungs.
Your journey begins at the tranquil, lake-level sanctuary of Coldwater Hut. Sitting at 620 metres on the edge of Lake Rotoiti, the air here is often filled with the gentle lap of water against the jetty and the distant call of a bellbird. It’s a peaceful start, but the "peace" is short-lived as you set off toward the Cascade Track junction.
The first two hours are relatively straightforward as you follow the valley floor, but the real adventure begins at the Travers River. This is a major unbridged crossing. On a good day, it’s a refreshing wade; however, the Travers is a temperamental beast. If there has been heavy rain, the river can become impassable. If you find the water high or murky, do not risk it—there is a swingbridge about 1.5 hours upstream that adds time to your trip but ensures you stay dry and safe.
Once across the river, the track shifts gears entirely. You’ll begin a steady, four-hour grind alongside the Hukere Stream. The name "Cascade Track" is no exaggeration. You are essentially climbing a staircase of stone and root alongside a series of thundering waterfalls. In the dappled light of the native beech forest, the mossy rocks and rushing white water create a scene straight out of a fantasy novel.
As you push higher, the towering beech trees begin to shrink, giving way to subalpine scrub and eventually open tussock. This is where the physical toll hits—the "bush edge" transition is steep and requires sure footing. Once you break out of the treeline, you are at the mercy of the elements. The final hour is a poled route across exposed alpine terrain. You’ll be navigating by orange poles and rock cairns (piles of stones) as you scramble over scree and rocky outcrops. When you finally crest the ridge and see Lake Angelus cradled in its glacial basin, the 1,030-metre climb feels worth every drop of sweat. The Angelus Hut, perched at 1,650 metres, looks like a tiny haven against the massive, jagged backdrop of the Robert Ridge and the Travers Range.
Parking for accessing the Coldwater Hut to Angelus Hut trail is available in St Arnaud, particularly at the Kerr Bay area. From here, hikers can either walk the Lakeside Track to Coldwater Hut or opt for a scenic water taxi ride across Lake Rotoiti directly to the hut's jetty. The road to Kerr Bay is easily accessible, with good parking facilities and public toilets available.
Get DirectionsKeep an eye out for these native and local bird species along the trail
Anthornis melanura
Endemic songbird with bell-like calls. Males are olive-green with a purple head sheen; females are browner with a narrow white-yellow stripe across the cheek.
Best time: Year-round
Petroica australis
Friendly forest bird that often approaches walkers. Males are dark grey-black; females are paler.
Best time: Year-round
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Point to point
The absolute crown jewel of this hike is Lake Angelus itself. This alpine tarn is incredibly photogenic, especially in the early morning when the water is like a mirror, reflecting the surrounding peaks in perfect symmetry.
Along the way, the Hukere Stream waterfalls are a major highlight. After a bit of rain, the sheer volume of water cascading down the mountain is a powerful reminder of nature’s scale. For the photographers among us, there are countless spots where the forest opens up to provide "peek-a-boo" views of the valley floor receding below you, offering a dizzying sense of perspective.
Another unique feature is the dramatic change in geology and flora. You start in the lush, bird-filled lowland forest and end in a stark, lunar-like alpine landscape where only the hardiest plants survive. It’s like experiencing three different ecosystems in a single afternoon.
To get to the start of this epic tramp, you’ll need to head to the alpine village of St Arnaud. Most hikers leave their vehicles at the Kerr Bay parking area. It’s a well-maintained spot with public toilets and plenty of space, though it can get busy in the height of summer.
From Kerr Bay, you have two choices to reach Coldwater Hut: 1. The Scenic Way: Book a water taxi across Lake Rotoiti. It’s a fast, exhilarating ride that drops you right at the Coldwater jetty, saving your legs for the big climb ahead. 2. The Long Way: If you’re a purist, you can walk the Lakeside Track from Kerr Bay to Coldwater Hut. It’s a flat, beautiful forest walk that takes about 2 to 3 hours.
Nelson Lakes is a haven for native New Zealand birdlife, thanks to extensive predator control in the area. Keep your ears open for the rhythmic tui and the chiming korimako (bellbird) while you’re in the lower beech forest. You are also very likely to see the South Island Robin (toutouwai); these friendly little birds often hop right up to your boots to see if you’ve stirred up any insects.
As you move into the subalpine zone, keep an eye out for the South Island Kākā. These large, forest-dwelling parrots are quite vocal and can often be seen spiralling through the canopy. Of course, no trip to the Nelson Lakes high country is complete without a possible sighting of the Kea. These highly intelligent (and mischievous) alpine parrots occasionally visit the Angelus Hut area. While they are a joy to watch, remember to keep your gear inside the hut—they’ve been known to fly off with a stray boot or pick apart a backpack in minutes!
Best Seasons: The track is best tackled in Summer and Autumn (December to April). During these months, the days are longer and the alpine flowers are in bloom. Spring is also beautiful, but you must be wary of snowmelt making the river crossings dangerous.
Winter Warning: Between May and November, this is strictly for those with advanced alpine skills, ice axes, and crampons. The bridge over the Hukere Stream is actually removed during these months due to high avalanche risk, and the track can be completely buried under snow.
The Nelson Lakes area holds deep significance for Māori, particularly the Ngāti Apa ki te Rā Tō iwi. According to legend, the lakes were carved out by the great explorer Rākaihautū using his kāheru (digging stick). Lake Rotoiti (Little Lake) and Lake Rotoroa (Long Lake) were created as food baskets for the people.
Geologically, the park sits right on the Alpine Fault. The dramatic, jagged ridges you see from the Travers-Cascade Track are the result of millions of years of tectonic uplift and glacial carving. This rugged terrain is what makes the park so special—it feels "young" and restless, a place where the earth is still actively being shaped.
Once you’ve descended back to civilization and your legs have stopped shaking, you’ll want to refuel in St Arnaud.
The walk from Coldwater Hut to Angelus is a true "Top of the South" rite of passage. It’s hard, it’s steep, and it will test your resolve—but when you’re sitting on the deck of Angelus Hut watching the sun dip behind the peaks, you’ll know exactly why you came.
Nestor notabilis
Intelligent alpine parrot endemic to the South Island. Known for curiosity and problem-solving abilities.
Best time: Year-round
Best time: Year-round
Nestor meridionalis meridionalis
A large, noisy forest parrot, often heard chattering in the treetops and distinguished by its olive-brown and scarlet plumage, though less common than its alpine cousin, the Kea.
Best time: Year-round
Rhipidura fuliginosa
In Māori mythology, the pīwakawaka is considered a messenger, sometimes bringing news of death.
Best time: Year-round