Mammoth Cave is the most easily accessible of all the show caves in the region, with wheelchair access to the first chamber. Larger groups of 15 or more will receive a guided tour, while smaller groups of visitors will pick up an MP3 self-guided audio tour to get started; available in English, French, German, Malay and Mandarin.
Upon entering the cave through bushland via a gently sloping boardwalk, you'll realise just how much there is to see here. Over 10,000 fossils had at one time accumulated inside the cave; upon excavating, many of these were found to be remains of Australian Megafauna (giant animals) that became extinct around 46,000 years ago. There is even a 50,000-year-old 'zygomaturas' jawbone embedded in the cave wall.