Best cave destinations in Oceania

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Oceania's cave systems range from the extensive limestone karst networks and glowworm cave systems of the southern island groups to the lava tubes of the volcanic Pacific islands and the underwater cave and cavern environments of the region's coral reef systems. The continent's most celebrated cave destinations combine exceptional geological formations with unique endemic fauna that has evolved in isolation to produce cave environments unlike any equivalent elsewhere.

The glowworm cave systems of the southern island groups represent a genuinely distinctive experience, with bioluminescent larvae creating illuminated cave ceilings that produce one of the most visually arresting underground environments in the world. Lava tube systems across the volcanic Pacific islands offer a contrasting experience built around raw geological drama and accessible guided programmes without the formation complexity of limestone cave systems.

The most visited glowworm cave destinations require advance booking during peak season when daily visitor limits fill quickly. Boat-based cave tours at the most celebrated sites deliver the most immersive experience and early morning visits before tour group arrivals offer better conditions. Your money goes a long way across most Pacific island cave destinations though costs in the southern island groups are in line with other developed world destinations.