SCUBA is a fun, relaxing, educational, interesting, and -- if approached properly -- safe activity, it is nonetheless a sport that has risks. SCUBA diving is in fact an extreme sport that can injure or even kill very quickly, and in some very nasty ways. What we are doing is entering an alien environment that is normally hostile to human life. We cannot breathe in water without some kind of mechanical assistance. These are facts and the details should be covered in every Open Water (OW) class. All too often in today's society, however, people do not want to take the time to properly prepare and get the education to safely take on new tasks. Some agencies appear to have responded to this by developing training programs that turn out high numbers of certified divers in shorter time frames, necessitating the reduction of time spent on what I consider to be some necessary basic skills. While this has resulted in great numbers of new divers entering the water, it has not resulted in many of those divers staying in the water. New divers are often given just enough training to enable them to dive in the most benign conditions under close supervision. Even then, there are still those who find out their initial training was just not adequate. It is at this point that they either make the decision to get more training or they leave the sport. The latter happens all too often. The former, when it does happen, does not always occur for the right reasons. Students should return to training to expand their diving and learn new skills; they should not have to return for new training just to be able to enjoy the sport safely. To require students to come back for basic information is something I find very troubling, and in some cases, has actually cost divers their lives. A lack of rescue instruction has resulted in a number of diver deaths when buddies did not know how to drop weights, support a diver at the surface, or even stay in contact with their buddy. This is another area frequently talked about, but all too often not actually put into practice. The concept of always diving with a buddy and just what that means in the "real world" is often given too little attention. Unfortunately, it is impossible to foresee every conceivable situation that can arise, but there are many basic issues that can be covered. The following chapters will hopefully address much of what is being overlooked or delayed in many programs as they exist today. It is my hope that this information also finds its way into the hands of those who have not yet begun the training process. I have included a chapter on how to select an instructor based on the quality of instruction and the content of the course. In some cases, these classes may cost more than the less comprehensive courses also available, but usually they do not. In fact, when you consider the additional skills and education gained from a more comprehensive course, you will find that you have received much more value for each dollar spent. In addition, you gain priceless benefits in the form of greater confidence, enjoyment, skills, and -- most importantly -- safety. Enjoy and dive safe

This book by ex pro diver Jim Limbrick is a tribute to all 58, 20th Century professional divers who lost their lives whilst playing their part in effecting the extraction of oil and gas from UK northern waters, specifically the North Sea, during the years 1971 to 1999. Diving and Offshore background is given, with all deceased diver's names and nationalities, fatality dates, diver's ages, accident locations, platforms, employers, equipment used, water depths, and details of accidents, all as far as is known, or can be told. With subsequent Safety Regulations and recommendations, this book is a must for all those people interested in diving, and especially budding divers of any persuasion.

The author's reasons for writing this book were, first, to provide readers with some basic hydrodynamic tenants that will help them understand the reasons for the complex nature of the stroke mechanics employed by elite, competitive swimmers. The first three chapters on resistance and propulsion were included for this purpose. The second purpose was to describe, what the author believes, is the major propulsive mechanism swimmers use: shoulder adduction. A third purpose was to comment on some of, the many "fads" and misconceptions about stroke mechanics that abound in our sport. His final reasoning behind writing this book was to speculate on some theories about stroke mechanics he developed over the years. The efficacy of these theories have yet to be validated by research, but are worth considering nonetheless. These purposes were met by the individual chapters on each competitive stroke, plus a chapter on stroke rates and stroke lengths. This book is not a continuation of the Swimming Faster series, although it contains some of the same information. Therefore, the author purposely changed the title to reflect his purpose in writing it. It contains descriptions and summaries of the most important research on swimming hydrodynamics over the last several decades, in his opinion. The descriptions of stroke mechanics are supported by photographs of some of the greatest swimmers in the world, both past and present. They were made from in-competition videos where one can see how they really swim, as opposed to what they think they should be doing, which is what one often sees in pool demonstrations and out-of-competition instructional videos.