Dun Mountain Trail

Loop

Highlights & Must-See Features

The Dun Mountain Trail is packed with "stop-and-stare" moments. Here are the ones you shouldn't miss:

• The Mineral Belt: This is the trail's calling card. This unique geological phenomenon creates a sharp line where the lush green forest ends and the "barren" orange-brown rock begins. It is one of the best examples of ultramafic geology in the world.
• Coppermine Saddle: At the top of the world, this is the perfect spot for a long lunch. The views across the Waimea Plains and out toward Abel Tasman National Park in the distance are breathtaking.
• Third House Shelter: Located at 660 metres, this historic spot is a great place to catch your breath. It’s a nod to the original rest stops used by the miners and railway workers over 150 years ago.
• The Railway History: Keep an eye out for the interpretive panels along the route. You can still see the old cuttings and embankments carved into the hillside by hand and black powder in the 1860s.
• Maitai River Scenery: The final leg of the loop follows the Maitai River. It’s a peaceful, shaded end to a long day, with several spots where you might be tempted to soak your tired feet in the cold mountain water.

Getting There

The trail is a loop, which makes logistics relatively easy. You have two main choices for where to leave the car:

1. Brook Street Entrance (Codgers Trailhead): Located just 2.7km from the Nelson city centre at 135 Brook St. This is the most common starting point for those wanting to do the full historical railway ascent. There is a dedicated carpark at the Codgers trailhead which is typically free.
2. Maitai Valley Entrance: Drive about 6km up the Maitai Valley Road, past the golf course. You’ll find an entrance sign and kiosk right next to the Maitai Camping Ground. This is a great spot to finish if you want to be closer to the river for a post-hike dip.

Since it is a loop, you can park at either end and simply follow the markers. If you are staying in central Nelson, you can even bike or walk to the Brook Street entrance to start your day.

Wildlife Spotting

Nelson’s back country is humming with birdlife, and the Dun Mountain area is no exception. Because the trail passes through several different ecosystems—from river flats to thick beech forest to alpine scrub—you’ll see a wide variety of feathered locals.

• Tūī and Bellbird (Korimako): These are the soundtrack to your first few hours. Listen for the bell-like clarity of the korimako and the more boisterous, metallic chimes of the tūī.
• Weka: Don't be surprised if a cheeky weka emerges from the scrub near the shelters. They are famously curious (and prone to stealing unattended snacks), so keep a close eye on your gear during lunch.
• South Island Robin (Toutouwai): These friendly little birds are known to follow hikers, hopping along the trail to catch insects stirred up by your boots.
• Rifleman (Tītitipounamu): Keep an eye out for New Zealand’s smallest bird in the higher beech forests. They look like tiny green ping-pong balls flitting manically between tree trunks.
• Kākā: While rare, these large, charismatic forest parrots are occasionally seen or heard screeching overhead, especially in the more remote sections of the Richmond Ranges bordering the trail.

Seasonal Magic & Practical Tips

The Dun Mountain Trail is open year-round, but each season brings a different vibe:

• Summer: The most popular time. The long daylight hours are essential for a 10-hour trek. However, the Mineral Belt is extremely exposed and can get scorching hot.
• Autumn: Perhaps the best time to go. The air is crisp, the sky is often a deep, clear blue, and the temperatures are much more comfortable for the big climb.
• Winter: It’s a stunning winter walk, but be prepared for snow on the saddle and ice in the shaded gullies. You’ll need a very early start to beat the sunset.
• Spring: The forest is at its most vibrant, and the rivers are high. Just be prepared for "four seasons in one day" weather.

• Start Early: This is a 10-hour mission for most hikers. Aim to be on the trail by 8:00 am at the latest to ensure you aren't finishing in the dark.
• Water is Key: There are very few reliable water sources once you leave the valley floors. Carry at least 2–3 litres per person.
• Sun Protection: The Mineral Belt has zero shade. Even on a cloudy day, the UV levels at 1100 metres are intense. Wear a hat and pack the sunscreen.
• Dogs are Welcome: This is one of the few "epic" trails in the region where you can bring your dog! Just remember that 38km is a long way for a pup, so make sure they are fit and you have extra water for them.
• Not for Kids: Due to the distance and the technical nature of the descent, this isn't a trail recommended for children.

Local & Regional Context

The area is deeply significant to local iwi (tribes). Long before Europeans arrived, Māori travelled into these mountains to source pakohe (argillite). This hard, fine-grained stone was highly prized for making adze (tools) and weapons because of its strength and ability to hold a sharp edge. The Mineral Belt was essentially a giant stone quarry for the ancestors of the Nelson region.

In the 1850s, European settlers "discovered" copper and chromite on the mountain. This led to the construction of the Dun Mountain Railway. While the mining venture itself wasn't a massive financial success, the railway was a pioneering feat of engineering. The "Dun" in Dun Mountain actually refers to the dun-brown colour of the ultramafic rock, a name given by early explorers that has stuck for over a century. Today, the area is a mix of conservation land and working forest, managed to preserve both the unique ecology of the Mineral Belt and the historical relics of Nelson’s industrial past.

After the Walk

After ten hours on your feet, you’ve earned a celebratory drink and a massive meal. Nelson has a world-class craft beer scene, and several of the best spots are located right on your way back into town.

• The Vic Public House: Located in the heart of Nelson, this is the place to go if you want a classic pub atmosphere. Their service is legendary, and their hearty meals are exactly what you need after burning a few thousand calories.
• Sprig + Fern Tavern (Milton Street): A local institution. They have 17 different craft beers and ciders on tap. It’s a traditional Kiwi villa with a relaxed vibe and plenty of bike parking if you decided to cycle the trail. It’s arguably the best spot for a "post-adventure debrief" with friends.
• Tides Bar and Eatery: If you want something a bit more sophisticated, Tides sits right on the banks of the Maitai River. You can watch the water you just hiked alongside flow past while enjoying a stylish meal.
• McCashin’s Brewery Bar & Cafe: A bit further out (4.5km), but worth the trip for their woodfired pizzas and beer garden. If you finish your hike early, their all-day breakfast is a winner.

2.5km away

An exceptional riverfront dining experience alongside the Maitai River, ideal for a relaxing meal with stylish ambience and local beverages.