The track runs alongside the bed of the aptly-named Dry River, at the bottom of a steep-sided valley, with lush ferns and nikau growing on either side. After 1 km you’ll reach the bottom of the climb; beyond here the track is steep and rugged as it zig-zags up the steep hillside. After 25 min of climbing the cave entrance suddenly comes into view. The entrance is an upside-down crescent shape, with impressive stalactites hanging like teeth. A wooden platform extends out into the cave and panels provide information of the cave’s history and ecology. Prior to this platform being built you could descend right to the bottom of the cave, which drops away diagonally downward into the hillside. Do not venture off the wooden platform; the fragile cave formations and flora are easily damaged. Return the way you came. You will likely find the descent more challenging than the climb.