Photo Caption: Author Dan Orr participates in the Grand Teton National Park Winter EMS Refresher giving lectures on diving safety. As part of the refresher, Dan presented a copy of his book, Scuba Diving Safety, to the GTNP EMS Group for their library.
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DEPTH Blog
The most useful snippets from our authors, all in one place. DEPTH discusses topics of diving, equipment and environment, physics and physiology, technique and technology, and hyperbarics.
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