Hidden Worlds Caverns offer something for everyone. "Tak Be Ha," (the place of hidden waters) is one of the the most heavily decorated of the caverns and is accessible by a ladder. Best seen by swimming, snorkel tours are available daily. Other very popular attractions in the park include snorkel tours of the "Bat Cave," "Tak Bi Luum" (the hidden world), and "Hilario's Well." For Open Water certified SCUBA divers, professionally guided diving tours of the caverns are also available. Several of these caverns appear in the "Journey into Amazing Caves" film. Hidden Worlds Park is located near Tulum, Quintana Roo, Mexico and is open year round.

http://www.hiddenworlds.com.mx

Naracoorte is double endowed with Nature’s gifts – the Naracoorte Caves Conservation Park and Bool Lagoon. Both are internationally renowned with the Caves being inscribed onto the World Heritage List in 1994 and Bool Lagoon recognised by RAMSAR as a wetland of international importance. The Naracoorte Caves World Heritage Area contains 26 caves of which many contain extensive fossil deposits. The fossil record extends back perhaps 500,000 years, research of the last 30 years yielding amazing fossils of extinct animals such as Thylacoleo, the marsupial lion, and many giant leaf eating kangaroos.

http://www.seol.net.au/tse/naracoorte.htm

Cave and Basin is, as the name says, a cave with a hot spring inside. In autumn 1883 the cave and the hot springs were discovered by William and Tom McCardell, and their partner Frank McCabe. They planned to gain ownership of the springs and then build a bathing resort. But the ownership was not easy to gain, the arguments escalated into a legal battle. The government was called to settle the dispute. As they already planned to make a National Park, and this location was ideal, they declared it as Canada's first National Park.

http://www.worldweb.com/ParksCanada-Banff/cave.html

Altitude: 235 meters above sea level
Depth: 30 meters
Length: Three kilometers
Type: Tunnel cave formed by underground river flowing through limestone rock Conditions: Some poorly ventilated areas of the cave, such as the Inferno are crowded with bats. The heat of their bodies and the smell of ammonia from their urine combine to make breathing difficult. While we can not reproduce these conditions in the Bat Cave, this tour gives some hint of what it is like to visit St. Clair cave.

http://www.torstar.com/rom/batcave/

The Cango Caves is one of the worlds great natural wonders, sculptured by nature through the ages - fascinating limestone formations in a wide variety of colours. An underground wonderworld. Trained guides are at hand to conduct visitors along the magic paths of the world's finest stalactite cave. According to legend the caves were discovered during 1780. Early visitors had to brave the pitch darkness of the vast caverns from the poor light of self made candles.

http://www.places.co.za/html/cango.html

Established to preserve Carlsbad Cavern and numerous other caves within a Permian-age fossil reef, the park contains over 85 known caves, including Lechuguilla Cave—the nation's deepest limestone cave at 1,567 feet (478m) and third longest. Carlsbad Cavern, with one of the world's largest underground chambers and countless formations, is highly accessible, with a variety of tours offered year-round. Photo courtesy of the Cavern Supply Company.

http://www.nps.gov/cave/

The entrance of the cave is in a pub. The Grottes des Tunnels is located at the Ardeche Valley Road, close to the Pont d'Arc. This road winds along the Ardèche valley, sometimes at the banks of the river, sometimes above the valley on the plateau. Here, near the Pont d'Arc the road is very close to the river. But there is one problem: The valley narrows and the river flows through the Pont d'Arc. So the road has to use a tunnel.

http://www.showcaves.com/english/fr/index.html

The Gutenberger Höhle is primarly of palaeontologic interest. In the entrance area, called Heppenloch, the remains of middle pleistocene animals were found. The found animals include rhinoceros, cave bear, cave lion and wild horses. Unique for the Swabian Jura are findings of monkeys (Macaca sylvana suevica) and wolf. The excavation was the very first action of the new founded Schwäbischer Höhlenverein. The Heppenloch is freely accessible. The cave tour shows the rest of the cave, which was discovered during the first excavations. During additional excavations in 1893, Karl Gußmann found a 1 m long tusk, 200 m deep in the cave. It is not clear, how the tusk got there.

http://www.showcaves.com/english/de/index.html

Antiparos is a small island, at the southwest of the bigger island of Paros. It has an area of 35 km2. The Cave of Antiparos is known for many years and has always been used as a place of refuge. Inscriptions on the stalactites witness the vistits of personalities like Marquis de Novandel (1673), Bishop de Gabrie (1673), Othon King of Greece (1840). There is an inscription describing a Christmas mass in 1673, held in honour of the French ambassador to Constantinople, Marquis de Novandel, who paid 500 people from Antiparos and Paros to take part. In the war of 1700-1774 some of the stalactites were cut off and carried to the museum of Petrograd by Russian officers.

http://www.showcaves.com/english/gr/index.html

Haan Gul was discovered during quarry works. It consists mainly of a huge chamber of 200 x 50 m and some small passages. In 1993 , the cave was developed into a show cave.

http://member.nifty.ne.jp/Edogawa/Korea/Hangul-e.html

Dunmore Cave is described in folklore as the mouth of a huge beast, with ten thousand teeth above his head and as many under his feet. The huge, imposing entrance, has been known for centuries, but it is only comparatively recently that it has been fully explored. Until the seventeenth century caves were regarded with dread and awe as being entrances to Hell. From the eighteenth century onwards a number of visitors, including scientists and historians, have written about the cave. Research on geological and historical aspects of the cave has been pursued making it one of the best documented cave sites in Europe.

http://www.showcaves.com/english/ie/index.html

Kungur Ice Cave is located in the vicinity of the ancient town of Kungur, 100km to the south-east of Perm city. Quaintly ramified passages stretch under the ground for over 6000 metres. And this is only the part which has already been explored. To this day old slides and crumblings do not allow to to determine the total length of the passages. In the explored part of the cave there are several dozens of grottoes. The largest one, which is called the Druzhba (Friendship) Grotto, was given its name in honour of the participants of the International Geological Congress who visited the cave in 1937. Grottoes are "adorned" with columns of stalagmites and icicles of stalactites up to two metres in height.

http://zakhar.perm.ru/docs/cave.htm

One of the world's longest and most complex caves and 28,295 acres of mixed-grass prairie, ponderosa pine forest, and associated wildlife are the main features of the park. The cave is well known for its outstanding display of boxwork, an unusual cave formation composed of thin calcite fins resembling honeycombs. The park's mixed grass prairie is one of the few remaining.

http://www.nps.gov/wica/

One hundred twenty years have passed since John and George Pickett of Colorado Springs squeezed through a dusty hole to discover a pristine cavern full of mystery and adventure. Using candles to illuminate their way, the Pickett boys and their Boys Exploring Association were the first to see the wonders of inner Cave of the Winds, today one of the most popular privately owned commercial caves in the United States.

http://www.caveofthewinds.com

Blanchard Springs Caverns's three levels offer something for everyone. The Dripstone Trail is the most heavily decorated section of the caverns and is accessible to wheelchairs. The Discovery Trail follows the path taken by early explorers. The Wild Cave Tour allows visitors to experience the undeveloped section of the caverns. Sections of both the Dripstone and Discovery Trails appear in the "Journey into Amazing Caves" film. Blanchard Springs Caverns is located in the Ozark National Forest and is open year round.

http://www.fs.fed.us/oonf/ozark/recreation/bsc.html

Geology: The caves are formed in the Leadville limestone which was deposited approximately 325 million years ago.

Location: The caves are located on top of Iron Mountain, just north of Glenwood Springs, Colorado. The tour begins at the Glenwood Caverns Gift Shop & Museum conveniently located next to the historic Hotel Colorado at 508 Pine Street.

Cave Temperature: A cool and comfortable 52 degrees.

Elevation: 7100 feet Feet of Passageway: Approximately 3 miles of surveyed passageway with new passageways continually being discovered.

http://www.glenwoodcaverns.com