Rights: Tony Millet Published 9 April 2010 Size: 170 KB

Lake Pupuke on the North Shore of Auckland is a good example of a maar crater. It is the crater of a scoria cone volcano that last erupted around 140,000 years ago. The lava from explosions at Lake Pupuke trapped many trees, which have become fossilised. These are still visible at Takapuna beach.

Acknowledgement: Google Earth