What is it?

Franz Josef Glacier — Kā Roimata o Hine Hukatere in Māori, 'the tears of Hine Hukatere' — is a vast, groaning tongue of ice that spills 11 kilometres down from the snowfields of the Southern Alps almost to the edge of temperate rainforest. Māori legend tells of Hine Hukatere, who loved to climb the mountains and lost her lover Wawe to an avalanche; her tears froze to form the glacier. Up close, the ice is not white but an electric, otherworldly blue, sculpted into pinnacles, seracs, moulins and narrow crevasse walls you can squeeze between with crampons crunching underfoot. Guides carve steps with ice axes as meltwater trickles and pops beneath you, and every few days the route changes completely because the glacier moves — sometimes several metres a day. What makes it extraordinary is the collision of worlds: nikau palms, tree ferns and kea parrots at the bottom, ancient glacial ice above, all within a few vertical kilometres of the Tasman Sea.

Where is it?

Franz Josef sits in Westland Tai Poutini National Park on the wild West Coast of New Zealand's South Island, part of the Te Wāhipounamu World Heritage Area, with the small village of Franz Josef/Waiau at its base. It's about 5 hours' drive from Queenstown, 4 from Greymouth, and just 25 minutes from its sibling, Fox Glacier. Heli-hikes and scenic flights operate year-round but are highly weather dependent — this is one of the rainiest inhabited places on earth — so the drier, clearer months of February to April and September to November offer the best odds, and building in a spare day is wise.

What makes it worth it?

There is a particular hush that falls over people the moment the helicopter lifts away and leaves them standing on the ice: suddenly there is only wind, meltwater and the deep, occasional crack of a glacier on the move. Visitors routinely describe it as the highlight of their entire New Zealand trip — 'like walking on another planet', 'the bluest blue I've ever seen' — and few forget the strange thrill of ducking into an ice cave lit from within like a sapphire. It's also a humbling encounter with time and change: your guide will point out where the ice reached a decade ago, and where it reaches now, and the retreat is stark. You come away with a visceral understanding of how alive and fragile a glacier is, not an abstraction from a documentary. Years later, it's the sound you'll remember — the hollow rush of water somewhere far below your feet.

How accessible is it?

Because the terminal face has retreated dramatically, walking onto the glacier from the valley is no longer possible or safe; the only way onto the ice is by helicopter with a licensed operator, and around 100,000 people take a glacier flight or heli-hike here each year. A heli-hike runs roughly NZD $650–800 for 3–4 hours (about 2–3 hours on the ice), while a shorter scenic flight with a snow landing costs around NZD $300–500; multi-day ice climbing courses are also available. Fitness requirements are moderate rather than extreme — you need to manage uneven ice, steep steps and about 2 hours of walking — with minimum ages (usually 8–10 years) and weight limits for the helicopter. Boots, crampons, waterproof jackets, overtrousers and gloves are supplied, so you just need warm layers, sunglasses and sunscreen. Booking ahead in peak season is essential, and expect cancellations for weather: operators usually refund or rebook, but flexibility in your itinerary is the single best preparation. The free Franz Josef valley walk (1.5 hours return) to a viewpoint of the terminal face is an excellent, accessible fallback.