Rockology in Whangaroa

St Pauls Rock: one of the many exposed rock hillocks that dot the hills around Whangaroa Harbour

Whangaroa Harbour is a rockhound's paradise

Duke's Nose from the sea

Climbing a steep pitch en route to the Duke's Nose

View from the Duke's Nose to the entrance of Whangaroa Harbour, and Arrow Rocks in the distance

View north from Duke's Nose

Novel long-drop seat at Pear Tree Bay

Coloured folded strata at Arrow Rocks

Bands of sedimentary rock at Arrow Rocks are the oldest in the North Island

Rock strata at Arrow Rocks mark the Permian/Triassic boundary event

Boulders on Arrow Rcks are covered in intriguing patterns

Patterns in boulders at Arrow Rocks

Seaweed-fringed rock pool in red mudstone at Arrow Rocks

A pool of coloured pebbles at Arrow Rocks

Arrow Island cave occupant: a New Zealand fur seal