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The following is a list of regular DiveLog contributors.

Bob Halstead began diving in the Bahamas in 1968, became a NAUI instructor in 1970 and, with his then wife Dinah formed Papua New Guinea's first full time sportdiving business in 1977. In 1986 they started the first PNG liveaboard boat operation, Telita Cruises. Bob has explored all Papua New Guinea coastal regions underwater and still does. Bob has a razor fish species named for him, Xyrichtys halsteadi, has published eight books on diving and marine life and hundreds of articles. Bob has been contributing his regular Dive Log column "Adult Section" for many years now. More at

Nigel Marsh & Helen Rose are Australian photojournalist based in Brisbane, Queensland. The couple are married and have enjoyed many dive adventures around Australia, Asia and the Pacific. Nigel has also co-authored two diving guide books with Neville Coleman, including the very popular Diving Australia. For more visit

Mike Ball has been a dive pioneer since 1969, setting standards in the Australian dive industry with exceptional live-aboard expeditions to the Great Barrier Reef and Coral Sea. Mike Ball Dive Expeditions offers three-, four- and seven-night expeditions including special custom trips such as shark researching and Minke whale encounters. Spoilsport’s twin-hull design maximizes comfort in all weather conditions. Expeditions suit both novice divers and the adventuresome diver seeking exciting big fish and shark action. Divers experience encounters with huge potato cod at the Cod Hole and the exhilarating shark feed at North Horn. Mike Ball Dive Expeditions makes world-class diving a world-class experience.

Tel 61-7-40530500; Website:; E-mail: [email protected]

Kevin Deacon is considered one of Australia’s most experienced, accomplished and highly published underwater photographers. His images have received international acclaim and have graced the pages of prestigious books and magazines throughout the World. He has won many awards for his photography and these days he frequently judges prestigious underwater photography competitions in the Australasia area.

Kevin is also the director of DIVE 2000 Pty Ltd, a highly regarded dive center that specializes in supply of underwater photographic, video & digital equipment.

Terry cummins has a 40 year history in education, business and exploration diving. Terry currently holds a Vice President’s position at PADI Worldwide within the Marketing Department and more recently was appointed Director of Market Development for PADI’s Technical Diving Division. Terry has received a number of industry awards including those from the Australian diving industry, OzteK and equipment manufacturer Oceanic.  He has frequently delivered papers at conferences and is a regular contributor to the Undersea Journal and Dive Log Australasia.

Michael McFadyen is a regular contributor with his column "Wreck Diving in the Pacific" which has been a regular feature in Dive Log for many years. Michael has logged up 3,250 dives and has dived all over the world. His great love is shipwrecks, both history and diving them. His popular website has been up and running since 1996.

Steve Reynolds is a member of the Marine Life Society of SA, Secretary for the Scuba Divers Federation of SA and a volunteer for the SA Apostleship of the Sea. He is an editor for all 3 of his organisations and his writing for Dive Log is a natural extension of his editorial work.

Steve has been a diver since 1978 and loves all aspects of diving, especially marine life, photography and shipwreck history.

Jeff Mullins is an expat Australian who resides in Tulamben, Bali. He and his wife Dawn have been visiting Indonesia, and in particular the Tulamben area of Bali, regularly since 1980. Jeff has been photographing Indonesia's marine life for over 30 years and has written many feature articles on Indonesia for dive publications around the World since 1988. In short - we have fallen in love with Bali, its people and its underwater wonders. Jeff began his popular "What's Bubbling in Bali" in 2011.

Christopher Deane started snorkelling at Aldinga beach in the early 1960’s and began to scuba diving in 1971 when he borrowed his friend’s tank to use at Port Noarlunga. He trained with BSAC and was a foundation member of the Cave Divers Association of Australia formed in 1976. In 1983 he qualified as a PADI instructor and by 1986 he progressed to PADI- IDC staff instructor. He has a lifelong involvement in state and national recreational diving politics, and has been a representative on a number of government fisheries advisory boards. In 2011 he was elected as President of the Historical Diving Society, South East Asia, Pacific. As a member of the Fleurieu Artificial Reef Society he successfully lobbied the Federal Government to gift the HMAS Hobart to the State to use as a dive site. Travel and under water photography in the Asia Pacific region over the past 40 years have been high on the agenda for Chris.

Ken Hoppen is a full time marine wildlife photographer who has travelled and dived extensively around Australia, Asia and the South Pacific. Though generally photographing ‘big things that move’, he is also known to peer into the many underwater cracks and crevasses in search of small, interesting critters. He is based in Melbourne, Australia, and regularly dives the southern Australian coastline in search of interesting new creatures and areas. He was a finalist in the Veolia Environment Wildlife Photographer of the Year Competition in the Portrait Section for 2010, and has regularly been a semi-finalist with his photos. After thousands of dives he still gets a buzz out of seeing new things!

Tom Byron began his diving career back in 1955. Tom has been one of the most prolific photo-journalists ever, contributing to the Australian Skindivers Magazine in the 1960's, Sportdiving in Australia in the 70's and 80's and Dive Log over the past 20 years. Tom's Scuba Diving Guides covering the East Coast of Australia have never been matched. Tom is still an active diver after 57 years since first scuba dive.

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