Warm up by swimming slowly for several laps. If the water's cold, don't sprint to get your body temperature up. Do a dry-land warm-up--calisthenics, brisk walk or jog--to get moderately sweaty. Hit the water before you cool down.
Welcome to Water World Unlike cycling, running and walking, you can't go for a swim from your front door--unless you live on a houseboat or have a really bad plumbing problem. So, where to swim? There are more options than you might think. Here are some suggestions.
