Most people visit Tongariro National Park for the famous Tongariro Alpine Crossing, but after spending a few days in the area it quickly becomes clear that the park has much more to offer.
During our stay at Whakapapa Holiday Park, I decided to check out the Silica Rapids Track, a short loop trail located just outside Whakapapa Village.
What I found was one of the park’s most peaceful short hikes — a scenic loop leading through open alpine terrain to the unusual mineral terraces that give the track its name.
In this guide, I’ll show you what the Silica Rapids Track is like and why it deserves a spot on your Tongariro itinerary.
Silica Rapids Trail Overview
The Silica Rapids Track is a scenic loop walk located just outside Whakapapa Village in Tongariro National Park. Unlike some of the park’s more demanding alpine hikes, this trail offers a relatively relaxed way to experience Tongariro’s volcanic landscapes.
The trail first follows the Lower Silica Springs Track through native forest to Waikare Stream (Golden Rapids), where iron-rich water stains the rocks a distinctive orange colour.
From there, the route continues along the Upper Silica Springs Track to the highlight of the walk — the pale mineral terraces of Silica Rapids, formed by silica deposits carried by geothermal water.
In between, sections of boardwalk and open terrain provide excellent views toward Mt Ruapehu and Mt Ngauruhoe across Tongariro’s volcanic landscape.
Trail Stats:
- Distance: 6.8 km loop
- Time: 2–2.5 hours
- Difficulty: Easy to moderate
- Start: Whakapapa Holiday Park
Starting the Silica Rapids Track
The Silica Rapids Track begins just south of Whakapapa Holiday Park, directly off Bruce Road. A small car park marks the trailhead, and from here the path quickly enters native forest.
The first section of the walk follows the Lower Silica Springs Track, which also forms part of the longer Round the Mountain Track — a multi-day circuit that loops around Mt Ruapehu.
For this hike, however, you’ll only be following a short portion of that route before branching off toward the rapids.
Although it’s possible to walk to Silica Rapids and return the same way, completing the loop is the better option. The second half reveals wider volcanic scenery with great views of Mt Ruapehu and Mt Ngauruhoe, even from Bruce Road.
Lower Silica Springs Track & Golden Rapids
From the trailhead, the Lower Silica Springs Track quickly enters a stretch of dense native forest. The path follows a gentle uphill gradient, winding through ferns, moss-covered rocks, and alpine shrubs while a small stream flows alongside the trail.
After a short walk, the track reaches Waikare Stream, where the water cascades through a section known as Golden Rapids.
The colour comes from iron-rich sediment carried in the stream, which originates from nearby bogs and acidic volcanic groundwater higher up the slopes. As this water flows downstream, it transports iron minerals that gradually settle onto the rocks.
When exposed to oxygen, these minerals oxidise — the same process that causes metal to rust — creating the distinctive orange and golden staining seen throughout the rapids.
Over time, these deposits continue to build up, giving Waikare Stream its unique appearance within Tongariro’s volcanic landscape.
Just beyond the rapids, the trail transitions onto a short boardwalk that crosses a more open section of forest.
Here the trees briefly thin out, revealing excellent views of Mt Ngauruhoe and Mt Ruapehu — one of the first clear glimpses of Tongariro’s dramatic volcanic landscape along the hike.
Golden Rapids to Silica Rapids
Continuing along the trail, the forest begins to thin and the views toward Mt Ruapehu gradually open up, becoming more impressive as you approach the rapids.
Soon the track reaches Silica Rapids, the geological highlight of the walk.
Here the rocks along the stream are coated in pale silica deposits, formed when geothermal water rich in dissolved minerals flows across the volcanic landscape.
As the water cools and becomes turbulent in the rapids, the minerals settle out and gradually accumulate on the rocks.
Over time these deposits form thin layers of silica and aluminium compounds, creating the distinctive white and cream-coloured formations visible along the stream bed.
In places the mineral coating can reach several centimetres thick, giving the rapids their unusual appearance.
The result is a striking contrast to the darker volcanic rock surrounding the stream and one of the most unique natural features along the Silica Rapids Track.
Upper Silica Springs Track
Beyond Silica Rapids, the trail continues onto the Upper Silica Springs Track, where the forest disappears and the landscape becomes more open. The path winds through patches of alpine vegetation growing between dark volcanic rocks.
Along this stretch you’ll also encounter one of the best viewpoints of Mt Ngauruhoe (Mount Doom) on this hike. From here, the symmetrical cone of the volcano stands out clearly against the horizon, offering a fantastic photo opportunity on clear days.
At the same time, the broad slopes of Mt Ruapehu dominate the skyline behind you, adding to the sense of scale across the volcanic plateau.
It’s a spectacular stretch of the walk and one of the most rewarding sections of the entire loop.
Returning via Bruce Road
After completing the Upper Silica Springs Track, the trail eventually reconnects with Bruce Road, marking the final stretch of the loop back toward the car park.
This stretch is surprisingly scenic, with wide open views across Tongariro National Park. From here you can see the expansive volcanic terrain stretching toward Mt Ruapehu, while the slopes leading up to the Whakapapa Ski Area rise above the road.
It’s a relaxed and easy finish to the hike, and before long the road leads back to the Silica Rapids car park, completing the loop.
Is the Silica Rapids Track Worth Hiking?
Absolutely. While it may not be as famous as the Tongariro Alpine Crossing, the Silica Rapids Track offers a surprisingly varied and rewarding hike in a much shorter distance.
Along the loop you’ll experience dense native forest, colourful mineral streams, geothermal formations, and wide volcanic landscapes, all within just a couple of hours.
The contrast between Golden Rapids, the pale silica terraces, and the open alpine views toward Mt Ruapehu and Mt Ngauruhoe makes this one of the most interesting short walks in Tongariro National Park.
And if you’re planning a bigger hiking trip across the region, there are plenty more spectacular trails to discover — including many featured in this guide to the best hikes in North New Zealand.
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