PUBLISHED BY National Association of Underwater Instructors (NAUI) PRODUCT DEVELOPMENT Jed Livingstone PROJECT MANAGEMENT Mary Beth DeCroix EDITORS Peter Oliver Mike Williams WRITERS John Heine Jolie Bookspan Peter Oliver REVIEWERS Jim Gunderson Stefan Hogborn Jim Larsen Bill Lidyoff Rudy Lutz Carl Meilahn Mike van Niekerk Tyler Phelps Stefano Ruia Mike Russell Michael Tong DESIGN AND LAYOUT The Information Design Group, Inc. PROOFREADING Kelley Hunter PHOTOGRAPHY Husain Alqallaf, Pavel Ankon, Kinga Bekier, Jeff Bozanic, Scott Brown, Ramon Dominguez, Robert Dunn, Jonathan Franks, William Goodwin, Jeffrey Guzman, Patyi Gyorgy, Wayne Hasson, Chad High, Karl Huggins, Caroline Istas, Wieslaw Kantor, Erick Leong, Jed Livingstone, Carl Meilahn, David Meyer, Matt Meyer, Victoria Newman, Tim O’Leary, Scott Raish, Wayne Rasanen, Evelyn Rockwell, Skye Ryalls, Tony Shih, John Skey, Julia Tsao, Chuck Weber, Heather Wilson, Atomic Aquatics, Diving Unlimited International (DUI), Suunto, Submarine Manufacturing and Products, Ltd. (SMP), Copyright © 2000, 2004, 2010, 2011, 2013, 2017 by the National Association of Underwater Instructors (NAUI) All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher. Printed in the United States of America
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