John is an active cave diver and a Wetmule who has been able to follow his passion since 1973.

As a member on numerous cave diving explorations, including two National Geographic expeditions, John has lent his experience & resources in providing specialised equipment & dive support to his fellow Wetmules and friends. More recently, projects have taken John to caves all over Australia, Xmas Island, back into New Zealand, and also to Italy.

John-Dalla-Zuanna Oztek 2017
 

A Hall of Fame inductee and a 40+ year member of the Cave Divers Association of Australia, John has served as the CDAA Mapping Officer, Site Director and is the current Standards Director.

John is still an active diving Instructor, rewarded by Latrobe University, Victoria - "Outstanding Services Award to Scuba Diving" and is a life member of Dive Latrobe dive club. In 2015 he was the recipient of the OZTek - "Outstanding Achievement Award” for services to Cave & Technical Diving. He is also involved in the current redevelopment of all the CDAA cavediver training standards & programs.

John's main field of interest in is the development of cave mapping systems using unique survey techniques and equipment to produce 3D maps of usually extreme cave environments.

John-Dalla-Zuanna Oztek 2017