Overview

The Ocean - Our Most Unexplored Frontier! Just as in outer space, there is a whole environment, or ecosystem, under the waters that cover 75% of our planet, with 70% of our planet being ocean waters.Beneath those waters there really is an entirely new world - a world full of beauty and mystery that few humans have the opportunity to experience. But the lucky few who do have the opportunity to experience this vast under water world are able to do so because they are scuba divers. Obviously, human beings cannot breathe underwater, so instead, they rely on a portable respiratory system that is self contained. In fact, that is what the word Scuba means: Self Contained Underwater Breathing Apparatus. This apparatus allows human beings to dive to depths that were once unthinkable, and to stay under the water for long periods of time, depending on how full the air tank is. Different mixtures of gasses are used in the air tank, depending on the length and depth of the planned dive. WHY KEEP A LOGBOOK? Dive logbooks are a great reference for your personal dive history. record all the little details, gear used so you can look back at log entries and cues to remember for future dives. Dive logbooks are necessary if you want to get a Scuba Certification. It will prove helpful in recording all the various dive spots and requirements for the Dive master program. Dive logbooks can save you money while traveling or on vacation-show the resort your logbook with proof of past dives or they will ask you to take a refresher class at your expense. Dive logbooks allow you to record and preserve your diving related memories - Scuba diving affords divers awesome memories and incredible experiences with unique underwater discoveries and encounters. Recall the highlights of your dive session weeks, months and years later by recording them in your dive log. Features: Record 110 Dives Perfectly Sized: 6 x 9 Interior Details: Dive Log Number of Pages: 110 pages. Great size for backpacks/purses Perfect for gift-giving. Birthday Gift Christmas Gift

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9781082054259

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