In this ground-breaking book, Mark Carwardine and Ken Watterson explain how, where and when to watch sharks around the world. Thoroughly researched, with the help of thousands of dive operators and shark experts in more than 50 countries, the book outlines everything the enthusiast needs to know about sharks and shark-watching: the history, techniques, risks and controversies of this increasingly popular activity; an overview of shark natural history; how to watch sharks responsibly; detailed information on the 24 shark species most likely to be encountered; how to take good shark photographs safely; and the many threats facing sharks, and how divers and snorkellers can help. This is also an invaluable reference for divers and snorkellers, containing the first detailed directory of more than 250 of the world's shark-watching hotspots, from cage-diving with great whites in South Africa and drift-diving with grey reef sharks in the South Pacific, to snorkelling with basking sharks in the Irish Sea and observing sixgill sharks from a submersible off Canada.