Stroll through beech and podocarp forest and past limestone outcrops along a well-formed track beside the Ōpārara River. You will reach a magnificent limestone arch, reputed to be the largest one in Australasia.
The track surface is rough and uneven in places and has steep drop offs. Take care when walking this track.
Oparara Arch is on McCallums Mill Road, north of Karamea. From Karamea, head north for about 10 km, then turn into McCallums Mill Road and follow this for about 13 km to a car park.
Note, McCallums Mill Road is a narrow and steep gravel road. It is not suitable for large vehicles or campervans.