What are the two styles of sidemount BCD design?
There are two styles of sidemount BCD: Mexican cave & Florida cave. Understanding the differences allows the best choice for your needs.
Read MoreWhat are the two styles of sidemount BCD design?XDeep Stealth Modification: Redundant Buoyancy
This XDeep Stealth modification adds redundant buoyancy to the Classic, Tec or Rec sidemount BCDs. It is a simple oral inflation system.
Read MoreXDeep Stealth Modification: Redundant BuoyancyA Guide to Modern Sidemount Diving
A comprehensive guide to sidemount diving. What it is, the history, the equipment styles, how it is configured, gear setup and everything else you need to know.
Read MoreA Guide to Modern Sidemount DivingDeco Sidemount BCD Review
My dive-tested review of the Deco Sidemount BCD. It's my favourite travel system for warm-water recreational sidemount.
Read MoreDeco Sidemount BCD ReviewWhat is Diving Experience? Can it Define an Expert Diver?
Divers often talk about diving experience. But what does that mean? Learn the difference between an experienced diver and an expert diver!
Read MoreWhat is Diving Experience? Can it Define an Expert Diver?Deep Diver Courses: What You Really Need To Know!
An honest appraisal of the training given on recreational Deep Diver courses versus the risks that exist on deeper dives.
Read MoreDeep Diver Courses: What You Really Need To Know!The Best Ascent Speed for Scuba Diving
Learn the best ascent speed for scuba diving. Contrary to assumptions, slower is not always safer when it comes to diving ascent rate!
Read MoreThe Best Ascent Speed for Scuba DivingWhy Do I Feel Tired After Diving? How To Avoid Post-Dive Fatigue
Do you feel tired after diving? Read this article to understand what REALLY causes post-dive fatigue & the simple steps needed to avoid it!
Read MoreWhy Do I Feel Tired After Diving? How To Avoid Post-Dive FatiguePro Tips For Choosing The Best Scuba Diving BCD For Your Needs
Honest pro tips on how to buy the best scuba diving BCD for your needs. Learn about BCD features, functions, designs and suitability!
Read MorePro Tips For Choosing The Best Scuba Diving BCD For Your NeedsScuba Diving Regulator Buyers Guide
This honest and impartial scuba diving regulator purchase guide will save you money. Avoid making costly mistakes when buying expensive dive gear.
Read MoreScuba Diving Regulator Buyers GuideWhat are the Risks of Deep Diving?
Deep diving risks are badly educated on many dive courses. This article is a comprehensive guide to the hazards of deeper recreational diving.
Read MoreWhat are the Risks of Deep Diving?Why Do More Diving Courses After Open Water Diver Certification?
What is the value of doing more diving courses after open water diver certification? It all depends finding a high quality course. Read how!
Read MoreWhy Do More Diving Courses After Open Water Diver Certification?The Best Sidemount Diving Regulators Set
Looking for sidemount regulators? This review features all the specifications for the best sidemount regulators sets on the market today!
Read MoreThe Best Sidemount Diving Regulators SetTop 5 Sidemount Adapter Systems
A reviewed list of the Top 5 Sidemount Adapter systems for converting backmount wing systems for sidemount diving.
Read MoreTop 5 Sidemount Adapter SystemsHow To Rig A Deco Sidemount Harness And Wing Perfectly!
How to assemble a Deco Sidemount harness that allows permanent & reliable attachment of the wing. This step-by-step guide shows you how!
Read MoreHow To Rig A Deco Sidemount Harness And Wing Perfectly!Some Options for Homemade DIY Sidemount Rigs
Some Options for Homemade / DIY Sidemount Rigs When I was a new sidemount diver there weren’t many commercially sold rigs available. As a result, I created several homemade DIY sidemount configurations using what was available; typically converting backmount dive…
Problems Reaching The XDeep Stealth Dump Valve
There are 6 issues commonly causing problems reaching the XDeep Stealth dump valve. Read my simple advice to easily fix those issues!
Read MoreProblems Reaching The XDeep Stealth Dump ValveScuba Diving FAQs: Common Dive Questions and Expert Answers
Scuba diving FAQs answered by an expert professional diver with 30 years of dive experience! Essential tips for safe & enjoyable dives!
Read MoreScuba Diving FAQs: Common Dive Questions and Expert AnswersXDeep NX Project Wing: Tested and Reviewed
Technical instructor review of the XDeep NX Project doubles wing. A truly innovative tech wing with some excellent and original features.
Read MoreXDeep NX Project Wing: Tested and ReviewedThe Importance of Deep Stops by Richard L. Pyle
The Importance of Deep Stops: Rethinking Ascent Patterns From Decompression Dives An abridged version of this deep stops article was originally in DeepTech, 5:64; and the full version was subsequently published in Cave Diving Group Newsletter, 121:2-5. by Richard L.…
What is the best technical diving computer? | 2023
My review of the best technical diving computer available in 2023. All the specifications and critique you need to make an informed decision!
Read MoreWhat is the best technical diving computer? | 2023High Pressure Nervous Syndrome | Deep Diving Maladies
An overview of high pressure nervous syndrome | HPNS | Hyperbaric deep diving malady | Causes, symptoms, treatment | By Andy Davis
Read MoreHigh Pressure Nervous Syndrome | Deep Diving MaladiesCompression Arthralgia | Deep Diving Maladies
An overview of compression arthralgia | Hyperbaric deep diving malady | Compression arthralgia causes, symptoms, treatment | By Andy Davis
Read MoreCompression Arthralgia | Deep Diving MaladiesWreck & Cave Diving Helmets
Everything you need to know about sidemount, wreck and cave diving helmets; including how to make your own DIY helmet.
Read MoreWreck & Cave Diving HelmetsPhilippines Underwater Archaeology | Shipwreck Resources
Philippines Underwater Archaeology, Shipwreck and Salvage Resources This is my resource link page for useful information on Philippines underwater archaeology, shipwreck resources and information about marine salvage. With a rich maritime history, including lots of action during World War Two,…
Scuba Q&A: Deep Diving Below Recreational Agency Depth Limits
Scuba Q&A Question: I was taught that “recreational divers plan all dives to be no stop dives” and also that most agencies consider 40m /130 feet as the maximum depth for recreational deep diving. That seems inconsistent when my…
Scuba Q and A: Diver Stress, Relationships and Comfort Zones
Scuba Q and A: QUESTION: I am a recreational diver and I dive mostly with my husband. Our relationship issues (bickering) caused me stress. Is this a factor I should consider when scuba diving? Andy’s Answer: [no_toc] I know of…
Underwater Photography | 5 Minute Photoshop Edit
5 Minute Photoshop Edit for Underwater Photographers by Andy Davis, PADI TecRec, ANDI, BSAC and SSI Instructor Many divers don’t have the luxury of using underwater strobes to provide effective directional lighting for their underwater photography. With a basic point-and-shoot…
Scuba Q&A: Why Do Decompression Divers Use Nitrox?
Why do technical decompression divers use nitrox in the shallower part of their dive? Using nitrox and oxygen reduces deco time & DCS risk.
Read MoreScuba Q&A: Why Do Decompression Divers Use Nitrox?A Guide to Narcosis Managment
A technical article by Barry Fowler, Ph.D. on narcosis management for scuba divers. Learn how to deal with narcosis on deeper dives.
Read MoreA Guide to Narcosis ManagmentThe Varying Permeability Model (VPM) for Dummies
VPM For Dummies The Varying Permeability Model (VPM) for Dummies By Kevin Watts Blog editorial: I reproduced this article, for wider dissemination, from it’s original location at RebreatherWorld forum This article attempts to provide a basic framework for looking…
Oxygen Exposure Management for Scuba Divers
OXYGEN EXPOSURE MANAGEMENT by Richard D. Vann Oxygen metabolism is the primary energy source in higher life forms, but when oxygen enters the metabolic process prematurely, reactive oxygen species can form which interfere with normal function and cause convulsions or…
Decompression Theory Resources | Technical Scuba Diving
Decompression Theory – Links and Resources Here is my selection of educational articles and resources for further reading on scuba diving decompression theory… – Bubble Decompression Strategies by Eric Maiken – VPM Decompression Site by Eric Maiken – Confessions of a Mortal Diver by Richard Pyle…
Technical Diving Standard Gas Mixes
The technical diving standard gas mixes. These breathing gasses ensure risk mitigation and help standardize team tech diving.
Read MoreTechnical Diving Standard Gas MixesCalculating No Stop Time for Scuba Diving
Calculating No Stop Time for Scuba Diving Welcome to an informative article on “Calculating No Stop Time for Scuba Diving” written by Erik C. Baker. This article is specifically designed for recreational divers who want to learn about the source…
Really Simple DIY Shearwater Petrel Bungees
How to improvise bungee straps for the Shearwater Petrel 2 technical diving computer. A secure method to improve Petrel configuration.
Read MoreReally Simple DIY Shearwater Petrel BungeesUnderwater Photography in Subic Bay, Philippines
Underwater Photography in Subic Bay, Philippines Welcome to underwater photography in Subic Bay, Philippines! Subic Bay is a world-renowned destination for wreck diving, but is often unknown by underwater photography enthusiasts. With its diverse range of rare marine life and…
A Review of the Human Factors in Diving Course
A Review of the Human Factors in Diving Course by Andy Davis I was recently given the opportunity to undertake the online Human Factors in Diving course. The online version of this course is self-contained, but also acts…
Oxygen Toxicity Dangers by Dr. E.D. Thalmann | DAN
DAN discusses the dangers of oxygen toxicity when using nitrox as a breathing gas. By Dr. E.D. Thalmann, DAN Assistant Medical Director; Captain, Medical Corps, U.S. Navy (retired) It’s a fact: we need oxygen to live. It’s because of the…
Clearing Up The Confusion About Deep Stops | Erik C. Baker
Clearing up the confusion about deep stops, by Erik Baker. A good reading resource for prospective technical divers. Decompression theory
Read MoreClearing Up The Confusion About Deep Stops | Erik C. BakerUnderstanding M-Values | Erik C. Baker
Understanding M-Values By Erik C. Baker In conjunction with an array of hypothetical “tissue” compartments, gas loading calculations and M-values compose the major elements of the dissolved gas or “Haldanian” decompression model. Through the use of widely-available desktop computer programs, technical…
Gradient Factors Explained By Matti Antilla Ph.d
Gradient Factors Explained I have reproduced this excellent article Gradient Factors explained by Matti Anttila in case the original website goes down. It is published here for educational purposes. Gradient factors explained by Matti Anttila Ph.d Remember your first diving…
Gradient Factors for Dummies
Gradient Factors for Dummies Gradient Factors for Dummies was written by Kevin Watts and first published on rebreatherworld.com. I have replicated it here because it now seems unavailable at the original site. Gradient Factors for Dummies by Kevin Watts (article…
ANDI Ascent and Descent Procedures | Diving Techniques
The ANDI ascent & descent procedures explained. Increase safety & promote team-cohesion. Rec & tech protocols | Advanced Diving Techniques
Read MoreANDI Ascent and Descent Procedures | Diving TechniquesHyperbaric Oxygen Therapy (HBOT)
What is Hyperbaric Oxygen Therapy (HBOT)? ANDI International Hyperbaric Research Center 74 Woodcleft Ave, Freeport NY 11520 516-546-2026 Article reproduced courtesy of Bruce Konefe Hyperbaric is simply referencing a condition that is above standard atmospheric pressure. Instead of breathing the…