Category: Wreck Diving Articles


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 Explaining the Technical Wreck Course – Approaches To Advanced Wreck Diving by Andy Davis, PADI TecRec and ANDI Technical Wreck and Advanced Sidemount Instructor A technical wreck (sometimes called ‘advanced wreck’) course is a pinnacle-level diving course for highly qualified technical divers who wish to penetrate extensively inside of shipwrecks.   Whilst the primary skills and [...]

scubatechphilippines-sidemount-technical-wreck-subic

A Technical Wreck Instructor’s Tips – Best Wreck Diving Equipment By Andy Davis.  ANDI and TecRec Technical Wreck Diving Instructor As a passionate wreck exploration diver with more than 25 years experience, I often get asked equipment advice by recreational and technical wreck diving students.  Over many years, I have found a few ‘favorite items’ [...]

sheck exley

Sheck Exley’s Razor – The Nature of Limits By R.D. Milhollin (Blog editor’s note: This article was first published in the March-April 1995, issue of Underwater Speleology. I have added it here on my blog to preserve and disseminate further, what I believe to be beneficial insights into overhead and technical diving knowledge). Sheck Exley was one [...]

Technical Wreck Diving Sidemount Restrictions

Technical Wreck – Passing Tight Restrictions In Sidemount A short video clip taken from my current sidemount technical wreck class  (Jan 2016). The student is passing his first serious restriction whilst line-laying inside the USS Majaba (El Capitan) wreck in Subic Bay. Passing restrictions, even in sidemount, might look easy (if scary!), but there are [...]

technical wreck penetration training course

Technical Wreck Penetration – A Question Of Experience by Andy Davis I often get asked how many dives should a technical wreck diver have before they undertake serious wreck penetration dives at depth. It’s  hard to answer, because it is a very individual question; which deserves more than a simple numerical answer. I can dive [...]

technical wreck diving tips

Top Ten Wreck Diving Tips For Safer Penetration Dives  By Andy Davis, ANDI and TecRec Advanced Sidemount, Technical Wreck Instructor, Subic Bay, Philippines   I’ve been diving on – and inside – shipwrecks for more than two decades, on 4 continents.  I specialize in teaching the highest level wreck diving courses as my full-time job.  [...]

Advanced Sidemount Wreck Restrictions

Advanced Sidemount Wreck Diving: Passing Extreme Restrictions  Advanced sidemount diving techniques present a vast spectrum of new opportunities for wreck divers to safely explore previously unpenetrable sections of shipwrecks. The training for these activities is typically only available to fully qualified technical wreck (and/or full cave) sidemount divers. This reflects the high challenge involved with [...]

Dive Truk Lagoon    Appeared in DIVER August 2014 (by Rod MacDonald) Ask wreck-divers where in the world they would most like to be, and the answer ’Truk’ would come as little surprise. Wreck expert ROD MACDONALD has taken time out from Scottish wrecks to write a guide to the iconic diving destination in Micronesia [...]

technical sidemount course subic philippines

Wreck and Tech Course Photos – Subic Bay Jan – Apr 2014  Some photos and commentary on the spectrum of technical, wreck and sidemount diving courses run by Andy Davis in Subic Bay during the first quarter of 2014.  I run courses throughout the year for individuals or small groups (max 3) – so please [...]

technical wreck course, subic bay, philippines

Technical Wreck Course Video Subic Bay, Philippines 2013  In September 2013, I managed to get some good footage from an ANDI Technical Wreck course, run in Subic Bay.  The course took place over 5 days and was 6 dives (although we did some extra too!).   My student, Alex (Zen Diver) had previously completed technical [...]

Advanced Wreck Diving Courses Philippines

Subic Bay Wreck Diving Photos from September 2013 Some photos illustrating the wreck diving and training carried out during the month of September 2013, here in Subic Bay, Philippines. Having completed Tec40/45/50, Alex undertakes the ANDI Level 2 ‘Techniques of Wreck Diving’ course – the photo above shows Alex surveying the upper deck of the [...]

technical-wreck-courses philippines

ANDI Wreck Diving Course – Penetration Dive Photos  Following the confined water skills training, the ANDI Level 2 ‘Techniques of Wreck Diving course gets real!  We conduct three actual wreck penetration dives of increasing complexity, during which students are able to apply the knowledge and techniques they have learned. Students apply proper reel-handling, guideline laying and [...]

ANDI Techniques of Wreck Diving Course Philippines

ANDI Techniques of Wreck Diving Course Subic Bay, Philippines  Some photos from the first dive of the ANDI Techniques of Wreck Diving course, run by Andy Davis in Subic Bay, Philippines on the 7th Sept 2013.   The course is ANDI Level 2 (advanced recreational) and is very similar in scope and protocols to the [...]

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Defining Wreck Diving Restrictions  Very few diving agencies go into detail about wreck diving restrictions. Those that do, tend to limit their definition to either ‘not restricted’ or ‘restricted’.  That definition hinges upon whether two divers could pass through simultaneously when sharing gas.  The intention of this is to prevent recreational divers entering areas that [...]

Showa L2D Tabby Front-cockpit-section

More photos of the WWII Japanese Showa L2D Tabby transporter wreck  Have been researching for a couple of days and had some good pointers.  There’s still more research to be done (and more dives also), in order to finalize an identification…and hopefully find some definitive physical evidence of the wreck’s identity.  The closest match so far [...]

C_47

Diving the Showa L2D ‘Tabby’ Wreck – Subic Bay, Philippines  This week I took several newly graduated technical divers onto an unidentified aircraft wreck in Subic Bay.  Within a short time of descending on the first dive, it seemed very likely that the wreck was some variant of a C-47 Skytrain (DC-3 Dakota). The wreck lies [...]

DIY Sidemount Wreck Diving Helmet

DIY Sidemount Wreck Diving Helmet I noticed, with some surprise, the high cost of cave sidemount wreck diving helmets currently being sold on the scuba market. Light Monkey sell an excellent diving helmet, but the cost (certainly here in the Philippines) was prohibitive for me.  I promote a policy of frugal investment on rugged and reliable dive [...]

sidemount wreck diving course philippines

Sidemount Wreck Diving Course Subic Bay, Philippines Congratulations to Firdaus Kapadia and Tim Mathieson for completing the dual Sidemount Wreck Diving course in Subic Bay, Philippines. Run over a total of 5 days, Firdaus and Tim completed a total of 10 dives to achieve PADI certification in both sidemount and wreck diving, having completed many [...]

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PADI Wreck Diving Course Philippines Subic Bay, November 2012 Congratulations to Jim Cain for completing his PADI Wreck Diving Course in Subic Bay.  The course was run over 2 days and included 4 dives, including the USS New York ACR-2, the USS Majaba (El Capitan), a Landing Craft Tank Mk6 and sunken US Navy docking [...]

advanced wreck diving philippines

Relocating a Lost Guideline – Skills for Wreck Divers Technical Diving knowledge share by Andy Davis This article, by Jim Wyatt, was originally published in Underwater Spelology.  I have reproduced the article here, as the issue of relocating a lost guideline also demands the attention of wreck divers at all levels. In the event of a [...]

wreck diving course philippines

Line Laying for Wreck Diving Penetrations – Video Tutorials Wreck diving courses include line laying practice for wreck diving penetration, however many wreck instructors have minimal personal experience in the finer points of guideline deployment and use.  Proper guideline techniques were refined and perfected in the discipline of cave diving exploration. Those techniques were adopted [...]

technical-wreck-diving-philippines

How To Evaluate A Wreck Diving Course by Andy Davis, PADI/TecRec/ANDI Sidemount Technical Wreck Instructor In this article I will be looking at what differentiates basic wreck diving courses – the good, the bad and the ugly. In particular, I want to examine specific wreck penetration issues, so that the reader may find some guidance [...]

Silt Out – Wreck Danger! This video, filmed by myself in Subic Bay, graphically shows the danger of silt out to wreck divers conducting penetration dives.   What looks like a nice safe and benign compartment, with plenty of light and an obvious exit (well within recreational wreck diving limits) turns into a potential death [...]

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Wreck Diving – Guidelines Technique Tutorial Videos These two videos from Mark Blackwood provide a good insight into effective guideline techniques for guideline laying in wrecks. More details of guideline techniques for wreck diving can be found in my Advanced Wreck Diving techniques supplement.  For details about my specialist wreck diving courses, please see: PADI [...]

Sidemount Technical Wreck Diving Subic Bay Philippines

Technical Wreck Exploration of the USS New York, Subic Bay I thought I’d share this lovely series of videos, which document a series of technical wreck penetrations on the USS New York. Having spent the last 4 years progressively exploring the depths of this wreck, I very much enjoyed the footage and voice-over presented in [...]

Sidemount Technical Wreck Diving Subic Bay Philippines

Pony Cylinders and Redundant Air Sources for Wreck Diving   Recreational wreck divers often question whether they need to carry a redundant source of air when conducting specialist wreck diving activities.  Most agencies and instructors will generally recommend the use of redundant air sources to be a prudent measure for wreck divers.  However, the use [...]

Sidemount Technical Diving Subic Bay Philippines

Tec45 Sidemount Course – F4 Phantom (45m) Check-Out Dive By Andy Davis, PADI and ANDI technical and sidemount course instructor In June 2012, I ran a PADI Sidemount Course  in combination with the TecRec Tec40/Tec45 program, based out of Subic Bay, Philippines.  These are photos from the graduation dive – conducted on the Vietnam-era F4 Phantom supersonic fighter-bomber. [...]

advanced wreck diving course subic bay

ADVANCED WRECK DIVING – COURSE NOTES by Andy Davis, PADI / ANDI Technical Wreck Instructor Disclaimer:   These notes accompany a professionally supervised advanced wreck diving workshop, aimed at developing specialist skills for qualified wreck divers.  This information is not a substitute for gaining proper experience under qualified direction.  Wreck penetration is a very hazardous [...]

scuba diving gas management

Scuba Gas Management – Course Notes by Andy Davis, PADI TecRec, ANDI, BSAC and SSI Technical Diving Instructor How To Improve Your Scuba Diving Safety Through Scuba Gas Management & Advanced Dive Planning. Surface Air Consumption Surface Air Consumption (SAC) is a useful measurement of air consumption at surface pressure, which enables the diver to [...]