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Tag Archive: course


Course Report: RAID Tech Instructor Cross-Over by Andy Davis Early in 2017, I made a decision to cross-over my scuba diving instructor rating to RAID. Having already taught for PADI, BSAC, SSI and ANDI over the last 15 years, I was initially hesitant to rush towards another agency at the drop of a hat. Nonetheless, I […]

technical-wreck-diving-philippines

How To Evaluate A Wreck Diving Course by Andy Davis 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 in their selection of a […]

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 Explaining the Technical Wreck Course – Approaches To Advanced Wreck Diving by Andy Davis 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 drills taught in these courses are identical wherever they are […]

cheap quality scuba courses

Are Some Scuba Courses more Equal than Others? by Andy Davis There are some big discrepancies in course pricing for seemingly ‘identical’ scuba courses. Cheaper courses, that result in the same certification and adhere to the same minimum agency standards should all be equal…. shouldn’t they? Why shouldn’t a prospective student simply shop around for […]

The Value of Progressive Scuba Training – ‘Putting Another Dollar In’. by Andy Davis When I talk with divers and read the online scuba forums I see a lot of scepticism about progressive scuba training courses. Novice divers often question the value of courses X, Y or Z.  Many intermediate and advanced divers will profess […]

sidemount-technical-wreck-courses-philippines

A Guide to Modern Sidemount Diving by Andy Davis 1. What is and isn’t Sidemount Diving? Sidemount Diving Sidemount diving is the, now increasingly formalized, approach towards conducting dives with 2 or more primary cylinders secured at the side of the body and in line with the torso – with no cylinders on the diver’s […]

scuba diving Trim-Water-Resistance

Scuba Buoyancy Masterclass Series #1 STREAMLINED SCUBA EQUIPMENT by Andy Davis Streamlined scuba equipment is a critical factor in making overall improvements to your comfort and control in the water.  Scuba divers should consider streamlined scuba kit to be a high priority when purchasing and configuring their equipment for diving. This article explains the benefits […]

the balanced rig scuba diving

Scuba Buoyancy Masterclass Series #8 THE BALANCED RIG by Andy Davis When considering the configuration of their scuba equipment for precision buoyancy and weighting, scuba divers should pay heed to the safety issues arising from having non-ditchable weight.  To mitigate those potential problems, it is worthwhile to devote some attention to the principle of a […]

Scuba Diving Buoyancy

Scuba Buoyancy Masterclass #7 ASCENT, DESCENT & BOTTOM PHASE by Andy Davis Scuba buoyancy plays an important role in all the phases of a scuba dive. In this article, we look in detail at particular elements of a scuba dive, with an emphasis on the impact of scuba buoyancy control on the safety and enjoyment […]

Breath control for scuba diving lung volume

Scuba Buoyancy Masterclass #6 SCUBA BUOYANCY AND BREATHING by Andy Davis Breathing plays a critical role in scuba buoyancy control.  As we breath, the inflation and deflation of our lungs is continually affecting our buoyancy, but providing the breathing remains steady, slow and controlled it is rarely noticeable on a scuba dive. The Lungs are […]

Scuba Diving Philippines

Scuba Buoyancy Masterclass #5 PRECISION TRIM & POSITION CONTROL by Andy Davis Whenever we use our fins for propulsion in the water, we create directional thrust. If our body is not horizontally trimmed (‘flat’) in the water, then we will be accidentally directing that thrust at an angle (upwards or downwards) that will interfere with […]

scuba diving Weighting

Scuba Buoyancy Masterclass Series #4 PERFECT SCUBA WEIGHTING by Andy Davis Divers seeking perfected scuba buoyancy can achieve precise and correct weighting through the application of several assessment methods.  As the diver progresses in experience, whenever they change equipment or whenever they change diving environments (salt/fresh water) they should re-assess their weighting. During the initial […]

Trim-Thrust-Buoyancy scuba diving

Scuba Buoyancy Masterclass ACHIEVING GREAT SCUBA BUOYANCY CONTROL by Andy Davis Scuba buoyancy control is determined by a number of different factors, such as breathing control, BCD/Drysuit inflation/deflation, weighting, trim and propulsion. As we know from our initial scuba training courses, our relative buoyancy underwater is dictated by whether the weight of water we displace […]

Scuba diving for fun and relaxation

Scuba Buoyancy Masterclass Series #2 PRECISION BUOYANCY CONTROL BENEFITS by Andy Davis Let’s have a look at 7 specific reasons why effective scuba buoyancy control is critical to the scuba diver: Environmental Considerations Fragile marine life is easily damaged The underwater world is a fragile environment and unintended contact from a diver is going to […]

advanced wreck diving course subic bay

ADVANCED WRECK DIVING – COURSE NOTES by Andy Davis 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 activity.  Divers should not […]

Wreck Diving Subic Bay

Scuba Buoyancy Masterclass Series #1 Scuba Buoyancy Control for Divers by Andy Davis Effective scuba buoyancy control is, without doubt, the most important attribute that a diver needs to develop. Control of your buoyancy has a direct impact on air consumption, comfort, relaxation and the control of descents and ascents – which have direct safety […]

scuba-tips-advice-how-to-professional

Scuba Q and A: Do You Need A Diving Certification? Q. Does someone need a certification for scuba diving? Answer: You need to be aware of certain specific risks and proficient in the physical protocols to effectively mitigate them. The most assured way to confirm that you have the right knowledge and proficiency is to […]

scuba-tips-advice-how-to-professional

Scuba Q and A: What’s The Best Advice For Someone Starting Open Water Diver Qualification? Q. What advice do experienced divers have for someone starting their PADI Open Water certification? Answer: Practice, practice, practice. Do not accept the bare minimum timescale for graduation if you are not very confident and competent to go diving unsupervised […]

Scuba diving skills and techniques

 How to Judge Your Ascent Rate Without a Dive Computer by Andy Davis Novice divers often express frustration about how to best conduct safe and controlled ascents from their scuba dives. In particular, I see many new divers questioning the best technique for judging their ascent speed.  The common use of dive computers has automated […]

technical-diving-philippines-subic bay courses instructor lessons

Prepare Yourself For Technical Diving by Andy Davis Technical diving is increasingly becoming more mainstream as a diving activity; that is a good thing. Many more divers are now opting to pursue tech training as a means to increase the range of their potential diving and enjoy new experiences in their favourite hobby. However, many […]

Sidemount Technical Wreck Diving Subic Bay Philippines

Advanced Recreational Wreck Diving, Subic Bay, Philippines   Going beyond a standard ‘Wreck Diver’ course and exploring the full range of training and equipment available to recreational divers who seek to dive safely and confidently in a wreck environment. This video was taken during an ‘Advanced Recreational Wreck’ workshop in Subic Bay, over 4 days […]

Advanced Sidemount in Action  A photo from recent ANDI Advanced Sidemount training dives, held in Subic Bay, Philippines.   The Advanced Sidemount course is open to qualified Technical Wreck and/or Full Cave qualified divers.  It covers multi-stage penetration protocols and techniques for passage through major-extreme restrictions.   CONTACT ME to discuss enrolling on an Advanced […]

shipwrecks and the submerged world course

Shipwrecks and Submerged Worlds: Maritime Archaeology  Shipwrecks and Submerged Worlds is a free four week online course offered in conjunction with FutureLearn, starting on the 6th October 2014.  It  gives you a unique opportunity  to gain an insight into the fascinating world of maritime archaeology, in an open access and engaging format. Drawing on the expertise of the staff […]

tec40-deep-diver-course-philippines

PADI Deep Diver versus the Tec40 Course by Andy Davis In this article, I will compare the PADI Deep Diver and Tec40 courses in detail.  Both courses are available to moderately experienced recreational divers and both courses are equal in respect of the number of training dives and the qualification depth limit. So, what differentiates […]

Andy-Davis-Technical-Diving-Courses Philippines

Teaser Pics: ANDI Advanced Sidemount Course I am currently editing videos and preparing a course report for the A.N.D.I Advanced Sidemount course, that finished today in Subic Bay.  The course was taught by Bruce Konefe (ANDI I.T.D #15). Here are some photos, captured from the video footage: The A,N.D.I. Advanced Sidemount course is focused towards […]

Sidemount Course in Subic Bay During March and April 2013, I ran several sidemount courses in Subic Bay – covering recreational and technical diving skills for a number of students.  Divemaster Tim Mathieson joined me to continue his progress in Tec Sidemount towards completion of his Tec50 qualification.  William Kao did a combination Sidemount Diver […]

Technical Sidemount Diving

 The following commentary was first published as a post on the Scubaboard internet discussion forum. I felt that it provided a very beneficial perspective on the positive and negative aspects of sidemount configuration; particularly in comparison with back-mounted alternatives.  It’s a useful read for those divers, of all levels and backgrounds, who are considering their […]

PADI Sidemount Diver Course   – Promo Teaser Video Sidemount Diving is a ground-breaking new approach for streamlined, convenient & safe diving, at both recreational and technical levels.  It is time that you learned more about the fastest-growing revolution in scuba diving… Sidemount training provides a structured approach for recreational and technical divers who wish […]

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 […]