Organ Pipes National Park

A small national park in a gorge cut by Jacksons Creek through the basalt of the Keilor Plains, twenty kilometres from the city off the Calder. The columns it is named for — basalt fractured into vertical pipes as the lava cooled — stand on the valley wall, reached by a single steep sealed path down from the carpark. Rosette Rock, a wheel of radiating columns, sits four hundred metres upstream.