Kubu Island was once submerged under the waters of a lake. Today, this rock island rises out from a white sea of salt. Whilst there are other rock islands in the Makgadikgadi region, this is by far the best known. Visitors can look out for ancient stone cairns, fossilized bird droppings and Stone Age artefacts. Three traditional taboos surround the islands: no hunting of wild animals, no collection of wild fruits and no removal of the island's rocks.