Join Dr. Hazel Barton and Nancy Aulenbach as they travel to unique and forbidding ice caves in Greenland, underwater caves in the Yucatan, terrestrial caves in the Grand Canyon and other spectacular locations. For those compelled to push their limits in the world's most hostile environments, the risk of fatal danger and thrill of new discovery are the everyday factors that make cave exploration such an awe-inspiring experience.

"Carefully leveled text and vibrant photographs introduce early readers to caves. Includes a map, infographics, an activity, glossary, and index"--

While on a dig in a Romanian forest, a group of scientists make a startling find. Dating back to the 13th century, they find a huge abbey, which was built over the entrance to a massive network of subterranean caves. Eager to learn what lies within the caves, the scientists discover to their peril that a large part of the cave system is under water. The scientists hire a team of American spelunkers who are trained in exploring underwater caves. The...

This new series takes your child on a musical adventure over Niagara Falls, inside a spooky cave in Oklahoma, and to the amazing butterfly forest in Mexico. Join Leo, June, Annie, Quincy, and Rocket as they try to complete a mission. Features animation, live-action footage, famous works of art, and classical music.

Musical adventures of preschool friends, the Backyardigans, as they have a number of adventures.