Australia's most recognised Cave Diving related qualifications are from the Cave Diving Association of Australia AKA the CDAA. This is in part due to it's history as it started way back in 1973 and is one of the longest standing Cave Training Organisations in the world. Being a current financial member of the CDAA provides the insurance required to access most of the Cavern and Cave Sites around Australia. CDAA Courses are taught in Australia and recognised world wide.

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Technical Diving International (TDI) is a world wide Technical Diving Training Agency that started in 1994 and has grown to be the worlds most well known and respected Technical Training Agency covering courses from Introductory Technical Diving Courses to Cave, Wreck, Decompression, Rebreather Courses and many more. 

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With TDI being so world recognised many students opt for the Dual CDAA / TDI Certification option. as courses can be run concurrently.

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TDI Intro to Cave (open circuit) can be completed concurrently with CDAA Basic Cave

TDI Full Cave Can (open circuit) be concurrently with CDAA Cave

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Pre Course - Reading manuals 

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Options:

Schedule can be tailored to suit a group

Local shore dives included

Controlled water and skills assessment dives are done in the dams around Collie (camping / accommodation fees apply)

Some sites are 4WD only (logistics discussed pre-course - self drive)

Site dives are done out on the Nullarbor Dive Sites and Nullarbor Expedition fees apply (POA)

Air fills and or blended fills are at the students expense