Sailing Directions are the official books published by the National Geospatial- Intelligence Agency of USA Government. Sailing Directions, covering the harbors, coasts, and waters of the world, provide information that cannot be shown graphically on nautical charts and is not readily available elsewhere. Sailing Directions (Enroute) include detailed coastal and port approach information which supplements the largest scale chart. 270 pages. Colour photos. 2011 edition.
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