Extreme Cave Diving

Today's sports are all about pushing yourself to the limit. But some athletes insist on going even further-to the extreme! Would you jump out of a plane or off a building? What about climb a cliff hundreds of feet high without a rope? Nailed It! Check out some of the planet's most daring sports and brings you along for the thrill! 45th Parallel Press Tiles Feature High interest topics with accessible reading levels, Considerate Vocabulary, Engaging Content and fascinating facts, Clear text, and formatting, Compelling Photos.