Land slips on Maungawhau/Mt Eden have prompted a call for the Government to help ratepayers with a $1.2 million bill for urgent restoration work on Auckland's volcanic cones.
Two collapses of the rocky slopes, although small, showed the sensitive nature of the city's volcanic cones after decades of neglect, said Friends of Maungawhau chairman Kit Howden.
Erosion was "nibbling away" at the mountain and undermining trees.
The latest slip was 10 days ago in Rautangi Rd. An Auckland Council spokesman said the area was secured and did not pose a risk to visitors, who could still reach the park via the staircase.
Mr Howden said Mt Eden's disused quarries in particular were subject to slips.