A Nautical almanac can provide you with essential navigational information, describing the position and movements of celestial bodies relative to the earth for every hour of the year. Even if you are an expert in celestial navigation, this is effectively useless if you don’t have an up to date nautical almanac. Modern nautical almanacs combine celestial tables with other information to provide a resource which is even more useful. A Crossing guide is essential for anyone planning to make a significant sea or ocean crossing and can keep a sailor out of trouble. A crossing guide may cover topics such as ideal timings, suitable boats, routes, regional weather and much more besides. Cruising guides provide similar information for island-hopping or coastal voyages.
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