Paparoa National Park

Listen first. Somewhere below the cliffs, the Tasman Sea is pulling back... and then it hits the rock with a deep, hollow boom you can feel through your feet. Salt hangs in the air, mixed with the damp green smell of rainforest. Palm fronds rattle in the wind. For a moment, this stretch of New Zealand's West Coast feels less like the far south of the world and more like somewhere close to the tropics.

Welcome to Paparoa National Park. It runs along the coast between Greymouth and Westport, and it climbs inland toward the granite ridges of the Paparoa Range. The park was created in 1987. Its purpose was to protect something unusual: a huge limestone landscape, full of gorges, caves and cliffs, sitting right against a wild ocean coast. The Department of Conservation now looks after it.

The best place to begin is the place most visitors come to see — the Pancake Rocks at Punakaiki. Look closely at the cliffs. They look like stacks of thin pancakes, piled one on top of another, sometimes leaning, sometimes cracked into towers. Nobody stacked them, of course. These rocks began as layers on the seabed, many millions of years ago, built from the shells and skeletons of tiny marine creatures.

Over time, heavy pressure squeezed those layers into limestone. Then the land rose out of the sea. Here is the part that most people miss. Geologists still debate exactly why the layers split so neatly. One explanation is called stylobedding — thin bands of softer material, formed under pressure, sitting between harder layers. Rain, wind and salt spray wear the softer bands away faster. That is what gives the rock its stacked, layered shape.

Now, back to that boom. When a strong swell rolls in, especially near high tide, seawater rushes into caverns under the cliffs. The air inside has nowhere to go. It forces the water up through openings in the rock, and spray shoots into the air with a hiss and a roar. These are the blowholes. On a calm day they may barely stir. On a wild day, the whole headland seems to breathe.

Look up from the rocks and notice the plants around you. Those tall, slim trees with feathery crowns are nīkau palms. The nīkau is the southernmost palm species in the world, and here it grows in thick groves beside the sea. Mixed with flax, ferns and twisted coastal shrubs, it gives this coast its strange, almost subtropical look. The warm ocean current and heavy rainfall help make it possible.

The forest holds a second surprise, and this one has wings. In the hills behind Punakaiki lives a seabird called the Westland petrel. Māori know it as tāiko. This is the only place on Earth where it breeds. The birds spend their days far out at sea. After dark in the breeding season, they fly back inland to their burrows in the forest. In the dim light, you may hear their calls.

You may also meet a bolder bird closer to the ground. The weka is brown, flightless and very curious. Weka often walk right up to visitors, looking for something to steal — a sandwich, a shiny key, the strap of a bag. They look a little like a small kiwi, but they are a different bird entirely. Please do not feed them. Keep your belongings close, and enjoy the show.

The people of this land are Poutini Ngāi Tahu, the Māori people of the West Coast. For generations, this coast was a travel route and a source of food, from the rivers to the rocky shore. Later, in the nineteenth century, European gold miners and coal miners arrived on the West Coast. Old tracks and the traces of small settlements still sit in the bush, slowly disappearing under moss and fern.

Inland, the limestone shapes a very different world. Rivers like the Pororari and the Fox have cut deep gorges through the rock. Their water often runs dark, stained the colour of tea by tannins from the forest. Grey cliffs rise straight up on either side, draped in ferns and hanging vines. Underground, the same rivers have carved caves. Walking these gorges, you hear mostly water, birds, and the drip of the canopy.

The park also carries a heavy memory, and it is right to pause on it. In 1995, a viewing platform at Cave Creek, inside the park, collapsed. Thirteen students and a conservation officer were killed. The tragedy led to major changes in how New Zealand builds and checks structures on public conservation land. Years later, the Paparoa Track opened as a Great Walk, and it also honours the twenty-nine men lost in the Pike River mine disaster in 2010.

That track crosses the range, from high tops with wide views down through beech and rainforest toward the coast. It takes most walkers a few days, and it is also shared with mountain bikers. If you have less time, shorter walks start right beside the highway. The Truman Track, for example, leads through forest to a wild little beach in a short stroll. The coast changes completely from one cove to the next.

So take a moment before you move on. Feel the wind coming off the Tasman, cool and full of salt. Watch one more wave crash against those layered cliffs, and listen for the blowhole to answer. As you walk back along the path, notice the nīkau fronds moving overhead and the sound of the sea fading behind the trees. The rock is still being shaped... a little more with every tide.