Caves

The Desert Caves Project of Saudi Arabia - Offers photos, information about cave safety, interviews and reports. Find out if the Legend of the Hibashi Lava Tube is true.
http://www.saudicaves.com/

Magnificant Mulu - Find out more about the mysteries of the Mulu cave system in Malaysia. Discover how many animal and plant species rely on these caves and view some pictures of limestone formations.
http://www.geographia.com/malaysia/caves.htm

Kids Cave - The American Cave Conservation Association offers fun activities for kids interested in caves. Includes a True or False section, and instructions for growing crystals.
http://www.cavern.org/acca/kidscave.php

The Armchair Caver - Avoid the unpleasantness of actual caving with armchair guides. Offers clickable maps with photographs of the cave.
http://web.ukonline.co.uk/arthur.vause/

Virtual Cave - Photographs of caves from all over the world both underwater and underground. Includes close-up shots and descriptions of the different plants, animals, and minerals found in each.
http://www.goodearthgraphics.com/virtcave/index.html

Cave Facts - Explains the features, wildlife, and discoveries that can be found underground, as well as information on karst and groundwater.
http://www.cavern.org/acca/cavefacts.php

Cave Biota - Short video clips of cave animals and interviews with scientists about cave biology.
http://cavebiota.com