Across the road from Harbour Keys cafe is a pretty beach with pōhutukawa trees right down to the water. I visited at mid-tide.

Curve of beach with pōhutukawas trees right down to the water.
Red sign reading: Danger Risk of cliff face collapse Keep clear of base.
A cliff beside the beach.

I walked over these flat black rocks going north. By the time I came back 15 minutes later they were surrounded by water (photo). I had to go bouldering instead. 😆

An apron of black rock is surrounded by water, with boulders to one side.