Image: Samuel Mann | Creative Commons
Moria Gate Arch.
Karamea area

Located in Kahurangi National Park in the West Coast region

Karamea is surrounded by Kahurangi National park, with walks ranging from a few minutes to several days.

Karamea is 95 km north of Westport. The road beyond Karamea ends at Kohaihai and you must pass back through Westport to get back out.

Ōparara Basin

The basin is about 20 km north of Karamea.

An old forestry road provides access to the Ōparara Basin. The road branches inland approximately 11 km north of Karamea on the road to Kohaihai. It is a further 12 km to the arches car park, and another 3 km to the caves car park. 

This gravel road is narrow and steep in places. It can become corrugated especially after prolonged dry weather. Take care, keep your speed down, drive with lights on and be prepared to stop or pull over.

The road is not recommended for campervans. There is a height restriction bar of 2.8 m installed to restrict large vehicles.

The Karamea area covers many ecosystems from the mountains to the sea including caves and Australasia’s largest limestone arches.

Ōparara Basin area

The Ōparara Basin in one of the finest features of the Kahurangi National Park. For a million years the Ōparara River system has been at work sculpting the 35 million-year-old limestone basin into an intriguing complex of caves, arches and channels.

The forest is a mixture of beech and podocarp, thickly carpeted with mosses and ferns growing in shallow moist soil and squeezing root systems through cracks to gain a hold.

Unique ferns and algae live around the arches and cave entrances.

Birds, insects and fish flourish in the environment, which is also home to the rare short tailed bat, the giant land snail, the cave spider and whio/blue duck. The Ōparara Basin is a great spotted kiwi sanctuary.

All insects, fossils, native birds and plant species are protected. Underground cave formations can take thousands of years to grow just one centimetre. They are fragile creations - even the oil on your hands can damage formations.

Charming Creek area plants

The hardy Ngakawau Gorge Daisy (Celmisia morganii) flowers abundantly on steep rock faces from December to January.

This is the only known habitat for this rare and protected species.

Karamea has a long history with some of New Zealand’s oldest archaeological sites dating as early as 1250.