Tantanoola Cave

Tantanoola Cave is a single-chamber show cave within Tantanoola Cave Conservation Park near Tantanoola in the District Council of Grant, South Australia, about 37 km northwest of Mount Gambier. Notable for its extensive pink and brown limestone decorations including stalactites, stalagmites, columns and shawls, the cave is one of Australia's few wheelchair-accessible caves. Managed by National Parks and Wildlife Service South Australia, it offers guided tours showcasing its well-preserved formations.

Visitors can expect a guided tour through a single large, well-decorated limestone chamber accessed via a short ramp and paved paths. The cave interior displays dense calcite formations in pink and brown hues, including stalactites, stalagmites, helictites, columns and shawls, illuminated for viewing. The site is set in a small conservation park with coastal scrub, with a visitor centre, picnic area and car park outside. Tours explain the cave's formation and discovery while visitors walk through the chamber.

Tantanoola Cave was discovered in 1930 by local boy Boyce Lewis while searching for a lost ferret on his family's property. The cave was subsequently developed as a show cave and is now protected as part of Tantanoola Cave Conservation Park, proclaimed in 1989. It represents the karst landscape of the Limestone Coast and has been managed by the National Parks and Wildlife Service South Australia for conservation and tourism.

The cave is a significant natural heritage feature of the Limestone Coast karst region and is valued for its conservation, education and tourism role. It showcases the geological processes of the Gambier Limestone and is an important visitor attraction for the District Council of Grant and the broader South Australian cave tourism network.