Mount Cargill from the Organ Pipes in Dunedin

If we take ourselves back in time, say, 15 million years ago, we’d find Dunedin to be a very different place. While such a journey would bring with it a number of issues, one of the most pressing problems would be that annoyingly active local volcano that just won’t quit erupting. During one of these eruptions, molten lava flowed across the landscape. As the lava cooled, it contracted and cracked, forming hexagonal basalt columns that can be found all over the region and at well-known local places such as Lawyers Head, Blackhead, and the Pyramids at the Okia Reserve on the Otago Peninsula. However, over the last 10 to 15 million years, erosion has shaped the landscape and features like the Organ Pipes into the forms we recognise today and love to climb over.