"People come down here and drop their jaws," said its owner, Sean Jacob, as he stood in the centre of the rock chamber. The cave is 106 metres long and up to five metres high. Part way in, the tunnel, which was formed when Mount Eden erupted 28,000 years ago, narrows and then opens into what Jacob calls "the ballroom" - a lofty area shimmering with golden minerals.
Beyond is a 10-metre crawl space that leads to another chamber. Jacob has attempted to enter it just once. "You draw blood," he said. "It is like going through a cheese-grater."
Aucklanders are familiar with the volcanic terrain of their city above ground, living side by side with 53 volcanoes. Yet many are unaware of the landscape concealed beneath their feet. Formed by volcanic eruptions, lava caves and tunnels are rare globally, and the sprawling patchwork beneath Auckland is unique to New Zealand. The city sits on top of roughly 200 known caves with a new cave being discovered every month, as construction increases and drilling tools become more sophisticated.
Esta historia es de la edición March 15, 2024 de The Guardian Weekly.
Comience su prueba gratuita de Magzter GOLD de 7 días para acceder a miles de historias premium seleccionadas y a más de 9,000 revistas y periódicos.
Ya eres suscriptor ? Conectar
Esta historia es de la edición March 15, 2024 de The Guardian Weekly.
Comience su prueba gratuita de Magzter GOLD de 7 días para acceder a miles de historias premium seleccionadas y a más de 9,000 revistas y periódicos.
Ya eres suscriptor? Conectar
If kids get protected from online harm, how about the rest of us?
The Australian government has proposed a ban on social media for all citizens under 16.
'It's not drought - it's looting'
Spain is increasingly either parched or flooded - and one group is profiting from these extremes: the thirsty multinational companies forcing angry citizens to pay for water in bottles.
Life in the grey Zone
Neonatal care has advanced so far that babies born as early as 21 weeks have survived. But is this type of care always the right thing to do?
Out of tune? Band Aid under fire for Africa tropes as it turns 40
Forty years ago this month, a group of pop stars gathered at a west London studio to record a single that would raise millions, inspire further starry projects, and ultimately change charity fundraising in the UK.
Deaths shine spotlight on risks of drinking on party trail
Vang Vieng is an unlikely party hub. Surrounded by striking limestone mountains and caves in central Laos, it morphed from a small farming town to a hedonistic tourist destination in the early 2000s.
Different strokes My strange and emotional week with an AI pet
Moflin can develop a personality and build a rapport with its owner - and doesn't need food or exercise. But is it comforting or alienating?
Strike zone Waking up to the rising threat of lightning
When the Barbados National Archives, home to one of the world's most significant collections of documents from the transatlantic slave trade, reported in June that it had been struck by lightning, it received sympathy and offers of support locally and internationally.
Cheap pints and sticky carpets: the old-school pub is back
In the Palm Tree pub, east London, barman Alf is taking only cash at the rattling 1960s till.
Brain gain Can a radical tax scheme convince the country's brightest to stay?
In the autumn of 2018, I moved to Lisbon for a month-long course at the Universidade .de Lisboa.
Fear and sympathy in small town divided over asylum camp
A year after anti-immigration riots, a site for asylum seekers faces hostility while some locals try to help new arrivals
