Black Rocks (Kauri Bay)

Black Rocks refers to a distinctive geological formation located in Kauri Bay, on the eastern coast of Auckland, New Zealand. The rocks are notable for their dark colour, contrasting with the surrounding lighter sandy beaches and vegetation.

These rocks are comprised primarily of weathered basalt. Their dark colour results from the iron and magnesium content within the basalt, which oxidizes upon exposure to the elements. The basalt originated from volcanic activity in the Auckland Volcanic Field.

The Black Rocks are a prominent feature of the Kauri Bay coastline and are often visited by tourists and locals for their scenic value and accessibility. They are typically exposed during low tide, allowing for exploration and tide pooling. The area around the Black Rocks is also popular for fishing and swimming.

The formation is ecologically important, providing habitat for various marine organisms, including shellfish, crabs, and sea anemones. Care should be taken when visiting the Black Rocks to minimize disturbance to the marine environment.

Due to their coastal location, the Black Rocks are subject to ongoing erosion from wave action and weathering.