For summer afternoons on the water or autumn cruises to the Channel Islands and all variations in between this almanac is a must. Buy your copy at the January boat show and use regularly. When you are not on the boat it should be available to use at home, take detailed notes and then take it with you when you go aboard. Because of the detail it is best used at the kitchen table when planning your next trip. Use tabs to mark what parts will be needed when aboard as the small print and wealth of detail will be difficult to use when the going gets tough and you are tired. This almanac has huge quantity of valuable detail at a modest price. LSC verdict: essential.