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Caving and especially cave diving are dangerous. If you do not have sufficient experience and training you may end up dead very quickly. Obtain the appropriate training and build up experience for any site you aim to explore.
Cave diving training Requirements vary around the world and some countries require you have local qualifying dives or qualifications before being able to access sites on top of existing qualifications.
Some of possible training agencies are listed below.
TDI certifications are accepted widely around the world.GUE certifications are accepted widely around the world.Raid certifications are accepted widely around the world.CDG for cave diving in the UK.CDAA for cave diving in Australia.