Top 10 Caves in Australia
Australia's cave heritage spans some of the oldest accessible limestone in the world, UNESCO-listed fossil deposits, and a karst plateau whose full extent is still being mapped. Most Australian show caves operate guided tours with good infrastructure; the wild-caving sector is smaller than in Europe but growing, particularly in the Blue Mountains and the Nullarbor. These ten caves represent the breadth of what Australia offers underground.
Find all of them on the cave map.
1. Jenolan Caves, New South Wales
Karst cave system. The Jenolan network is the oldest known open cave system in the world, with dating of the cave passages placing them at approximately 340 million years old. The accessible show cave complex includes 11 caves open to the public, the most celebrated being Lucas Cave (known for the Cathedral chamber), Orient Cave (with dense, complex speleothems), and Temple of Baal. The caves were first noted by European settlers in the 1830s; systematic exploration by Jeremiah Wilson from the 1860s established the network. Total explored passage exceeds 40 kilometres. Tour grades A to C; self-guided and guided options available.
2. Naracoorte Caves, South Australia
Karst cave system. UNESCO World Heritage Site (Australian Fossil Mammal Sites, 1994). Naracoorte contains one of the most complete records of Pleistocene vertebrate fauna in the world. Victoria Fossil Cave holds the remains of more than 90 species of megafauna — including the giant wombat Diprotodon and the marsupial lion Thylacoleo carnifex — preserved in cave sediments over the past half-million years. Alexina Cave has exceptional calcite decorations; Wet Cave provides natural access to the fossil deposits for interpretive tours. The caves also host a large colony of common bentwing bats (Miniopterus schreibersii oceanensis). Tour grade A to B.
3. Nullarbor Karst, South Australia and Western Australia
The Nullarbor Plain above the Great Australian Bight conceals one of the world's largest karst systems, with shafts dropping to a mostly unexplored network of horizontal passages beneath the plain. Cocklebiddy Cave contains one of the longest cave dives in the world — Australian cave divers including the late Ron Allum and the CDAA (Cave Divers Association of Australia) have made dives exceeding 6 kilometres in the subterranean lake. No public show cave access; exploration is by permit and requires advanced cave-diving qualification.
4. Buchan Caves, Victoria
Karst cave system. The Buchan show caves in East Gippsland include the Fairy Cave and Royal Cave circuits, both managed by Parks Victoria. Royal Cave is notable for its abundance of helictites — eccentric, apparently gravity-defying speleothem growths driven by capillary and fluid-inclusion forces rather than gravity. The caves are open year-round with daily guided tours. A colony of southern bent-wing bats roosts in adjacent wild caves; seasonal restriction on nearby wild cave access protects the roost. Tour grade A.
5. Capricorn Caves, Queensland
A limestone labyrinth north of Rockhampton, Capricorn Caves is a commercial cave operation on privately managed land, notable for dramatic Cathedral Cave section — a large, natural chamber used for weddings and chamber concerts — and for its large maternity colony of ghost bats (Macroderma gigas), one of the only ghost bat colonies accessible to the public in Australia. Seasonal cathedral cave astronomy tours exploit a natural skylight that admits a vertical shaft of sunlight to the cave floor at the December solstice. Tour grade A to B.
6. Margaret River Caves, Western Australia
The Margaret River region of southwest WA contains a concentration of four major show caves within 30 kilometres: Lake Cave (a stalagmite-hung table suspended over an underground lake), Mammoth Cave (self-guided with fossil megafauna displays), Jewel Cave (the most commercially developed, with Australia's longest straw stalactite at 5.9 metres), and Ngilgi Cave (known for multicoloured formations and a challenging adventure route). All four are managed by CaveWorks and are open year-round. The karst system underlying the Margaret River plateau extends well beyond the show caves; several wild cave sections are accessible to qualified local grotto members. Tour grade A to B.
7. Wombeyan Caves, New South Wales
One of the most accessible wild karst systems in the Blue Mountains region, Wombeyan has both guided show cave circuits (Fig Tree Cave and the Cathedral group) and a wild cave area available to self-guided visitors who register at the site office. The surrounding marble karst is geologically older than Jenolan, formed from metamorphosed limestone. The camping ground at the caves site makes multi-day visits practical. Tour grade A to C.
8. Yarrangobilly Caves, New South Wales
Located within Kosciuszko National Park at 1,260 metres elevation, Yarrangobilly Caves occupy a cold karst environment with a natural thermal pool adjacent to the caves fed by 27°C spring water — a jarring contrast with the 8°C cave interior. Four caves are self-guided or guided: Jersey Cave, Jillabenan Cave, North Glory Cave, and Glory Cave. The cave system contains an extensive series of passages still under active exploration by the local NSS equivalent groups. Tour grade A to B.
9. Chillagoe-Mungana Caves, Queensland
Chillagoe, 140 kilometres west of Cairns, sits on a limestone spine that forms one of the most dramatic karst tower landscapes in Australia: vertical limestone pinnacles rising from the savanna, riddled with caves. Three show caves (Royal Arch, Donna and Trezkinn) are guided by Queensland Parks rangers; a further forty-odd wild caves are accessible to self-guided visitors. The caves contain Aboriginal rock art; some have yielded archaeological material. Tour grade A to B.
10. Cutta Cutta Caves, Northern Territory
Cutta Cutta near Katherine is a cave system in dolomite (magnesium-calcium carbonate) rather than limestone — geologically distinct and one of the few dolomite cave systems open to the public in Australia. The cave contains a small population of orange horseshoe bats (Rhinolophus megaphyllus) and the blind shrimp Stygiocaris lancifera, a relict crustacean species adapted to the cave's permanent groundwater — an example of stygofauna that evolved in isolation from surface populations during past climate changes. The surface landscape of scattered dolomite towers rising from the monsoon woodland savanna is itself a notable karst feature. Guided tours only, managed by Parks Australia. The cave is on the edge of the tropical monsoon zone; access is restricted during the wet season (November to March). Tour grade A.
Planning an Australian cave trip
The most practical cluster is Margaret River in Western Australia, where four significant show caves sit within 30 kilometres and all can be visited over two days. The Jenolan-Wombeyan-Yarrangobilly triangle in the NSW tablelands and mountains covers three distinct cave environments and links as a loop from Sydney over three to four days. Naracoorte in South Australia is best combined with the Coonawarra wine region and stands geographically apart from other major sites. Capricorn Caves and Chillagoe are natural additions to Queensland itineraries centred on the Whitsundays or the Atherton Tablelands. Cutta Cutta fits a Katherine stopover on the Stuart Highway. Driving distances between cave regions in Australia are substantial; regional flying is often necessary to combine more than two clusters. The Australian Speleological Federation (ASF) coordinates state-based grottos including the NSW Cave and Karst Conservation Group and the Speleological Society of South Australia, which offer mentored access to wild cave systems adjacent to the main show cave regions for cavers seeking to go beyond the guided tour circuits.