A handy splashproof guide to the navigator?s art for yacht and motorboat owners. This book tells the navigator how to find out where they are and how to proceed to their destination. Seamanship and navigation are the cornerstones of yacht sailing. This book will cover all the essentials in a small, companion format for easy, onboard use. Covers: Charts. Depth of water, Latitude and longitude, GPS, Dead reckoning, Tides, passages and pilotage. 24 pages.