Accompanied by stunning colour photographs by Norbert Wu, one of the world's leading underwater photographers, McAlpine's text provides crucial information for divers - the best seasons to dive specific areas, unique geographical aspects of each locale, popular dive sites within each destination, and the ideal times and places to see favourite species and extraordinary behaviours - and tips for the non-diver. Also touches on current conservation issues related to the seas and their inhabitants, while offering hope for future preservation of these natural wonderlands.