At the Pancake Rocks and Blowholes at Punakaiki, horizontal sheets of limestone and mudstone have been chiseled by rain and sea into curious stacks, ridges and chasms. Best time to be impressed is around high tide and with a big running sea, when big waves rolling off the Tasman Sea surge up into the undercut cavities and erupt like booming geysers from the chimney like fissures. It's not possible to photograph the sheer exhilaration witnessing the display of power.