Imray Almanacs & Pilot Books
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. 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. You also be interested in VHF radios and communication.