Spooner's Tunnel: New Zealand's Railway to Nowhere and the Monument It Left Behind

Step inside, and the world vanishes. Daylight shrinks to a coin-sized disc behind you, then to nothing. The air drops several degrees. Water drips from the curved concrete lining overhead, each drop echoing through 1,352 metres of perfect darkness. Somewhere ahead, invisible, the tunnel bends just enough that the far portal stays hidden. You are standing inside the longest decommissioned railway tunnel in the Southern Hemisphere — a passage carved through the Spooners Range by immigrant labourers armed with little more than picks, shovels, and an almost reckless determination to connect the isolated Nelson region to the rest of New Zealand's South Island.

That connection never came. But the tunnel endures.

A Colony's Frustrated Ambition

The idea of a railway for Nelson had been circulating since the 1860s, when settlers in one of New Zealand's oldest European communities looked south toward the main trunk line and saw opportunity — and mountains in the way. Permission to build was finally granted in 1871, and construction began two years later in 1873. By 1876, the first 30 kilometres of track reached the small settlement of Foxhill, southwest of Nelson. Then the money ran out. An economic recession froze the project in place, and the rails sat rusting for three years before work cautiously resumed, inching the line forward to Belgrove by 1880.

It was at Belgrove that the railway faced its greatest physical obstacle: the Spooners Range, a forested ridge of hills rising over 300 metres above sea level between the Waimea Plains and the valleys beyond. There was no going around it. The railway would have to go through.

Building Through the Mountain

In early October 1890, the Wellington-based contractor Allan Maguire was awarded the contract to bore a tunnel through the Spooners Range. Work commenced in 1891. Fifteen men worked three rotating shifts around the clock, attacking the rock from both the northern and southern portals simultaneously, each team driving toward an invisible meeting point deep inside the hill. A separate crew — men and boys — produced concrete blocks by hand for the tunnel lining.

The workforce was remarkably international. Chinese, Japanese, and Italian immigrants laboured alongside local New Zealanders, spending two years underground in conditions that tested every man who entered. By March 1892, the northern heading had advanced 640 metres while the southern had pushed through 240 metres. Engineers projected the two teams would meet by late May 1892 — but the mountain had other plans. Landslides and relentless bad weather forced delay after delay, pushing the breakthrough back by more than a year.

On 9 June 1893, the two headings finally met. Five days later, on 14 June, the concrete lining was complete. The tunnel stood finished at its summit of 303 metres above sea level — a passage of extraordinary ambition through raw New Zealand bush country.

The Railway to Nowhere

With the tunnel complete, trains began running through the Spooners Range and onward. The line pushed slowly south — to Kohatu, across the Motueka River by bridge in 1906, and finally to the remote settlement of Glenhope by 1912. In total, 96 kilometres of track had been laid over nearly four decades, creeping forward at an average of barely two kilometres a year. Yet Glenhope was still some 70 kilometres short of Inangahua Junction, where the line was supposed to meet the South Island's main trunk network. The railway had earned its bitter nickname: the railway to nowhere.

Two world wars stalled construction. The Great Depression struck the workforce savagely — Christmas 1930 saw 300 railway workers made redundant in a single announcement. From 1931 onward, the line operated at a persistent loss. By 1952, the New Zealand government conceded the inevitable and announced the railway's abandonment. The community did not accept it quietly. In 1955, nine women — among them the young activist Sonja Davies, who would go on to become a celebrated trade unionist, politician, and peace campaigner — sat on the tracks at Kiwi Station for a week in protest before being arrested and fined. Their defiance could not save the line. In September 1955, the last freight train rumbled through Spooner's Tunnel, and the silence began.

A Second Life in Darkness

The tunnel did not sit entirely idle after the rails were pulled up. Enterprising locals discovered that the constant cool temperature and near-total darkness made it an ideal environment for commercial mushroom cultivation. For a time, crops grew where locomotives once thundered. Later, seismic monitoring equipment was installed inside the tunnel, quietly recording earthquake data from deep within the Spooners Range. A trust was eventually established with local council support to maintain the structure and offer guided tours, with revenue funding the tunnel's upkeep.

On 17 April 2016, the tunnel was permanently opened to the public as a centrepiece of Tasman's Great Taste Trail, a cycling and walking route that threads through the Nelson region's vineyards, orchards, and forests. Riders now follow the old railway corridor through Norris Gully and into the tunnel's mouth, emerging at the far side to coast downhill toward Belgrove, where one of only two surviving railway windmills in New Zealand still stands — a relic of the days when steam engines needed water pumped to their tenders before beginning the steep climb to the tunnel.

What Spooner's Tunnel Preserves

The tunnel is more than an engineering curiosity. It is a monument to the labour of immigrants who built New Zealand's infrastructure by hand — communities of Chinese, Japanese, and Italian workers whose names rarely appear in official histories but whose work is literally carved into the rock. It is a record of colonial ambition, of a small, isolated settlement's decades-long refusal to accept its geographic limitations. And it is a reminder that failure can produce something more enduring than success: the railway never reached its destination, but the tunnel it left behind has outlasted every line that did.

At nearby Tapawera, the relocated Kiwi Station now houses the Tapawera and Valleys Museum, while Nelson's Founders Park preserves rolling stock, track sections, and station buildings from the old line. Together with the tunnel itself, these fragments form an open-air archive of a railway that shaped the region's identity precisely because it never finished what it started.

Into the Light

Today, visitors are advised to bring torches and warm clothing — the ride through Spooner's Tunnel is dark, cold, and wonderfully eerie. The concrete lining still holds after more than 130 years. Water still drips. The silence is immense. And as cyclists and walkers emerge blinking into the Nelson sunshine, they join a long procession of people who have passed through this mountain: navvies, engine drivers, mushroom growers, seismologists, and now, tourists on hired bicycles, all of them briefly swallowed by the same extraordinary hole in the earth.

This article was partly inspired by old photographs and personal recordings that came to light when someone brought their family memories to be digitised. It made us wonder what else might be out there — in attics, shoeboxes, old cupboards — connected to Spooner's Tunnel and the railway it served. If anyone holds old media linked to this remarkable piece of heritage, services like EachMoment can help preserve them for future generations.