Did you know that you should never dive headfirst if the water is shallow? You could get seriously hurt. If you want to dive, ask an adult where it is safe to do so. The water should be at least 9 feet (2.7 meters) deep. Find out more about how to be safe around and in water in Water Safety, part of the Safety First series. This is an AV2 media enhanced book. A unique book code printed on page 2 unlocks multimedia content. This book comes alive with video, audio, weblinks, slideshows, activities, hands-on experiments, and much more.