Fodor's Expert Review Kilauea Caverns of Fire

This way-out adventure explores the underbelly of the world's most active volcano via the Kazamura Lava Tube system. The world's longest lava tube system—more than 40 miles long, with sections up to 80 feet wide and 80 feet tall—is 500 to 700 years old and filled with bizarre lava formations and mind-blowing colors. Tours, customized to groups' interests and skill levels, focus on conservation and education and take visitors through beautiful lava caves unlike any others in the world. The tours are by reservation only and are well worth the extra detour (about 40 minutes off the main highway) and planning. Equipment is included. When you make your reservation, you will be given detailed directions to the location.