

Pre-Owned Primary Wreck-Diving Guide (Paperback) 0962145394 9780962145391
Key item features
- Title: Primary Wreck-Diving Guide
- ISBN10: 0962145394
- EAN: 9780962145391
- Genre: SCIENCE / Earth Sciences / Oceanography
- Author: Gary Gentile
- Pre-Owned Condition- Pages can include limited notes and highlighting, and the copy can include 'From the library of' labels or previous owner inscriptions. Accessories such as CD, codes, toys, may not be included.
Specs
- Book formatPaperback
- Fiction/nonfictionNon-Fiction
- GenreTextbooks
- Pages0
- EditionFirst Edition
- PublisherGary Gentile Productions
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Most certifying agencies offer specialty courses designed to present the entry level diver with new challenges, encouraging him to improve his proficiency under controlled supervision. This step-by-step approach is good because it ensures that a diver does not get in over his head, so to speak, by taking on more than he can handle. What the beginner sometimes fails to realize is that dives conducted in different environments and under a variety of conditions require an intimate understanding of himself and his limitations, and of the water into which he is about to plunge: the ocean is more than a pool with a larger circumference. By increasing his skills incrementally and by gaining a gradual appreciation for the deep, a diver can achieve his full potential safer and more rapidly.
This book is a primer for one particular and very captivating activity: diving on shipwrecks. It proposes to offer practical information, as opposed to theoretical or mathematical; that is, how to conduct dives on sunken ships, not what happens to the body under pressure. Furthermore, it intends to address the grimmer realities that are often overlooked: entanglement, equipment flooding, seasickness, and getting lost at sea, to name a few. To a certain extent, these unfortunate events are overemphasized in order to make up for the fact that they are se ldom addressed in class or in popular publications: they make uncomfortable enlightenment at best. My intention is not to scare anyone off, but to acquaint people with worst case scenarios that may never occur, and to impart information that is otherwise unobtainable.
The topics covered include equipment modification, thermal protection, access to sites, current and surge, wreck orientation and navigation, night diving, photography, pharmacology, and a riveting rivet by rivet account of how shipwrecks got the way they are and why they look the way they do.
The text is extensively illustrated with color photographs from the author's collection; eight illustrations demonstrate the evolution of shipwreck collapse, from an intact hull to a field of debris.
- Title: Primary Wreck-Diving Guide
- ISBN10: 0962145394
- EAN: 9780962145391
- Genre: SCIENCE / Earth Sciences / Oceanography
- Author: Gary Gentile
- Pre-Owned Condition- Pages can include limited notes and highlighting, and the copy can include 'From the library of' labels or previous owner inscriptions. Accessories such as CD, codes, toys, may not be included.
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Product image for illustration purposes only. The item you receive may vary from the image in minor ways, such as slight differences in appearance, color, and/or design. *Exceptions apply during holiday season, and on certain electronics, collectibles, and jewelry.
Pre-Owned: Good
What is the Walmart Pre-Owned Program?
Walmart Pre-Owned allows you to find previously owned, well-cared-for items from Walmart’s trusted & performance-managed sellers. Shopping Pre-Owned allows you to bring home the best-quality picks at even lower prices, in addition to extending the life of an item & reducing waste. Find your favorites & shop a range of conditions in every category.
Why Walmart Pre-Owned?

Trusted sellers & quality items
Each Pre-Owned item listed comes from Walmart’s trusted performance-managed sellers, to ensure you get quality items.
Quality you can afford
Save even more on top brands & your most-loved items.

30-day free returns
Don’t love it? Most items offer a 30-day* free return policy, for added peace of mind.

Sustainability
Shopping Pre-Owned helps in extending the life of an item & reducing waste.
Product image for illustration purposes only. The item you receive may vary from the image in minor ways, such as slight differences in appearance, color, and/or design. *Exceptions apply during holiday season, and on certain electronics, collectibles, and jewelry.
