Lynne Cox has had a long career in extreme open water swimming. She broke the English Channel record, for men or women, aged just fifteen. Since then, she has swum the Cape of Good Hope, the Cook Strait in New Zealand and the Bering Strait from Alaska to the Soviet Union to name but three. One of her key achievements is in pioneering endurance swims in very cold water; through her methodical approach and with help from her team she has been instrumental in the science and understanding of the physiology of cold water swimming.
It was the chapter on heat and cold that I found most interesting and useful. There is detailed discussion of the acclimatisation process, and one thing I hadn’t realised is that if you are fully acclimatised to cold you cannot be simultaneously acclimatised to heat, which makes hyperthermia (overheating) a real risk – not something you would expect in an outdoor swimmer. Cox gives sound advice and lists of signs and symptoms to look out for with both hyperthermia and hypothermia.
For me as a wild swimmer who enjoys the spontaneity of swimming outdoors, much of this book is redundant. However, if you’re keen to plan an extreme endurance swim I’d suggest it would be hugely valuable. The essence of Cox is that she clearly loves swimming and part of that comes from her enjoyment of the environment in which she swims. However, she plans all her swims like military operations, a fact borne out by her relationship with the US Navy SEALS with whom she has trained and taken advice, and the book contains comprehensive Risk Assessment and Seal Mission Planning sections. When embarking on a swim across the Bering Strait or around the Cape of Good Hope, I can see the value in this. If you fancy a quick trip up the Dart for a mess around in a waterfall http://wildswim.com/horseshoe-falls, this approach is somewhat excessive.
Cox covers everything here, from swimsuits and chafing to sunscreen, from waves to fog and wildlife. Much of the information is in summary form from her chats with other people, and is not in a great deal of depth. This is, however, a manual and it’s probably the most comprehensive one you could find if you were planning a Channel swim, for example. In this case, there’s some informative advice regarding the importance of finding the right pilot, and how to go about it.
Cox includes discussions on motivation and mental preparation, and also technique and training guidance. There’s a fair amount of information on finding swimming clubs and groups which is only applicable to the USA, and I hope that the publishers might consider the value in updating an edition for the UK or Europe owing to the large potential market here.
Cox’s background is in competitive swimming, and she worked with an Olympic coach for many years. This goes a long way to explaining her approach, which is very much goal and achievement-based. So, if you have a general interest there is a fair bit of overkill here, although you’ll undoubtedly find a range of useful information and for me the chapter on heat and cold alone is worth the cost of the book. If you’re into extreme swims, then it’s an essential addition to your swimming library.