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This guide is aimed at recreational sailors at all levels. Practical examples demonstrate techniques and techlogy, showing how to calculate one's position at sea, plan a course and plot the course sailed. Traditional techniques are also reviewed, including taking bearings and navigating in shallow waters. The Glenans Sailing School, on the south Brittany coast, has an international reputation for the quality of its teaching, and its instructors have combined their kwledge to produce this guide to coastal navigation.