Mammoth Cave National Park
I-65, exit 43
270-758-2180 (Cave Tour Information)
877-444-6777 (Cave Tour Reservations)
888-448-1474 (Cancel or Change Reservations)
With over 365 known miles of cave passageways, Mammoth Cave is the world's longest cave. Besides its spectacular size, Mammoth Cave has an almost surreal beauty. Remarkable stories of human history, 350 million-year-old rocks, and its fascinating animals adapted to life in the dark, make Mammoth Cave a place you won't want to miss. Ranger-led activities are offered daily, except Christmas Day. Join rangers for trips in the cave and on the surface, ranging from 1 1/4 hours to 6 1/2 hours. Designed with all visitors in mind, you'll find activities suiting a wide variety of needs and interests including cave trips, nature walks, campfire programs and slide presentations. Most tours are designed for a mixed audience. Some are easy, others are strenuous, several are designed exclusively for children, and one is designed for people seeking a wild cave adventure off the beaten path. All tours begin and end at the Visitor Center. Children under six are admitted free.

Crystal Onyx Cave
Cave City, I-65 exit 53 - 270-773-2359
Once connected to the nearby highlands of the Mammoth Cave Plateau. Prewitt's Knob today stands out like an island in the surrounding farmland of the sinkhole plain. Sheltered beneath the knob's resistant cap rock, is Crystal Onyx Cave, one of south-central Kentucky's most important archeological sites and a formation rich cave. Soon after the cave's discovery in 1960, prehistoric human remains were found in the bottom of one of Crystal Onyx Cave's many vertical shafts. Archeologists have since determined that the cave was use as a "mortuary facility" where native Americans over 3,000 years ago returned the bones of their deceased to the earth. The one hour guided tour also provides viewing of the rich assortment of calcite formations found throughout the cave, including a room filled with some of the largest viewable rimestone dams in the area.
Open all year except January

Cub Run Cave
I-65 exit 65, Munfordville - 270-524-1444
Turn right onto Hwy 88 for 13 miles.
Re-opened to the public after 56 years, Cub Run features rare boxwork speleotherms, highlighted by modern electric lighting and easily accessed by renovated paths and wooden walkways. Otter Spring runs through the cave where visitors can view blind crawfish and minnows.Enjoy lunch at the Amish Restaurant and gift shop. Open Daily.

Diamond Caverns
Park City, I-65 exit 48 - 270-749-2233
Open year-round with tours offered about every 30 minutes. Reservations are not required.
For over 147 years Historic Diamond Caverns has offered tours of Kentucky's most beautiful cave. Conveniently located on the southern entrance to Mammoth Cave National Park, this privately owned attraction is a must-see natural wonder that compliments a visit to Mammoth Cave. Presented by state-of-the-art lighting, Diamond Caverns features intricate drapery deposits lining the halls in cascades of naturally colorful calcite. Thousands of stalactites, stalagmites and flowstone formations decorate the cathedral-like chambers. Explore the natural beauty and fascinating history of this underground treasure with the entire family on safe, high-quality trails. Knowledgeable guides will unlock the geologic mysteries and recall the fascinating history of the cave during the 1/2 mile long guided tour.

Hidden River Cave
I-65 exit 58 - 270-786-1466
Hidden River Cave and American Cave Museum was described by naturalist John Muir as a "noble gateway to the birthplace of springs and fountains and the dark treasuries of the mineral kingdom." The cave is part of the American Cave and Karst Center, a nonprofit educational center. Featured on Discovery Channel's "Dirty Jobs" series, the cave boasts Kentucky's largest show cave entrance, a subterranean river and a historic hydroelectric generating system. Visitors can also tour the American Cave Museum. Open year-round.

Kentucky Caverns
I-65 exit 58, Horse Cave - 800-762-2869 or 270-786-2634
Kentucky Caverns offers a close-up view of both intricate and massive onyx formations created by the powerful combination of water and time. Knowledgeable guides will bring the geological and historical stories alive for visitors while they are surrounded by unrivalled beauty. Reservations are necessary for groups of 15 or more. A one-price ticket includes a guided cave tour and admission to Kentucky Down Under.

Lost River Cave and Valley
I-65 exit 22, left at stoplight #9, right on Nashville Road. Bowling Green
270-393-0077 or 866-274-2283
Open seven days a week 9AM-5PM except Thanksgiving, Christmas and New Year's. Boat tours subject to weather so call ahead.
Kentucky's only Underground Boat Tour and the enchanting Butterfly Habitat await you at Lost River Cave and Valley. Daylight disappears from view as you board the boat on the river that Ripley's Believe It or Not claims is the shortest, deepest in the world. A comfortable 57 degrees year round, the boat tour offers a visit into the timeless world of a Kentucky Natural wonder. The walking tour along the river's edge will bring alive stories of Native Americans, Early European settlers, Civil War troops and the notorious Jesse James. Enjoy Treetop Bridge, nature trails, bird watching stations, picnic area, gemstone sluice, Old Mill Gifts and the rock climbing wall.

Onyx Cave
Cave City, I-65 exit 53 - 270-773-3530
Located high above the surrounding limestone sinkhole plain, Onyx Cave is a system of vertical shafts uncovered during construction of the Guntown Mountain parking lot on Huckleberry Knob. The pits and domes of Onyx Cave were protected from weathering by the knob’s sandstone cap rock and after their formation have slowly became coated by calcite crystal flowstone. The combination of crystals and seeping water makes the walls of this most unusual cave shimmer. The 30 minute tour is conveniently located at Guntown Mountain and is perfect for those travelers who are on a limited time schedule. Open March through November.

Outlaw Cave
I-65 exit 53, Cave City - 270-773-2560 or (800) 798-0560
Lying on the side of a limestone valley just beneath the sandstone cap rock of the Mammoth Cave Plateau, Outlaw Cave offers a 35-minute non-strenuous, guided tour filled with beautiful stalactites, stalagmites, flowstones and other breath taking formations. Area legend has it that famous outlaws such as Jesse James, who roamed this part of the country in 1880, robbing stagecoaches and banks, hid out in Outlaw Cave and as well as other area caves. Jesse and his gang would have found this cave ideal as a "hideout" because the natural opening is large enough to ride a horse in. A tour in Outlaw Cave is perfect for the whole family, where it's short length, few stairs, and affordability makes it easily accessible to all. Outlaw Cave offers a lantern tour daily as well as normal tours.