Craig Challen is an Australian technical diver and cave explorer from Perth, Western Australia.

After commencing cave diving in the 1990s he was an early adopter of then rapidly-developing technologies such as closed-circuit mixed gas rebreathers.

He has explored caves throughout Australia and New Zealand and in China, Thailand, Vanuatu and the Cook Islands.

Craig also has an avid interest in shipwreck diving and has explored sites over the last 15 years in the South China Sea, Solomon Islands, Australia, New Zealand, Mediterranean Sea, Thailand, Malaysia and Indonesia.

He is additionally an enthusiastic helicopter and aeroplane pilot.

In July 2018 Craig participated in the Tham Luang cave rescue of 13 people in Thailand. For his contribution he was awarded the Star of Courage and the Medal of the Order of Australia. He was named as the 2019 Australian of the Year jointly with his long-standing dive partner Richard Harris.

Presentation topic - “Dual Rebreathers” - Reasons to use this configuration, reasons not to use and his approach to design and use.