2-hour, 2-mile tour that combines an explanation of the geology and history of the caves. Reservations recommended.

1-mile steep descent through the Natural Entrance into the Big Room. The paved walkway follows the traditional explorer's route and winds down 750 feet into the spectacular Big Room, which is 25 stories high and the size of 14 football fields.

2-hour, fairly strenuous tour through less-developed, unlit parts of the cave. Each person on the tour carries a candle bucket as the original explorers did. The tour is limited to 10 people. Reservations should be made well in advance.

One-hour guided tour through cathedral-sized rooms filled with colorful stalactite and stalagmite formations. The highlight of the tour is hearing the Great Stalacpipe Organ play.

90-minute ranger-led tour of the Lehman Cave system and its intricate stalactites, stalagmites, draperies, and shields.

Moderately challenging, 466-foot cave with two collapses allowing sunlight in. The back section has floors that are steep, very rough, and sometimes wet

Less challenging, 3,280 foot trail that requires no stooping

Less challenging, 580-foot cave with a wide open feel