832-401577 - Stalagmites, stalactites, limestone deposits, Lipa Cave, Lipska pecina, Cetinje, Montenegro, Europe

832-401576 - Stalagmites, stalactites, limestone deposits, Lipa Cave, Lipska pecina, Cetinje, Montenegro, Europe

860-291727 - Interior view of the Grotte des Moidons, Molain, Jura, France

860-291726 - Interior view of the Grotte des Moidons, Molain, Jura, France

860-291725 - Interior view of the Grotte des Moidons, Molain, Jura, France

860-291724 - Interior view of the Grotte des Moidons, Molain, Jura, France

860-291723 - Interior view of the Grotte des Moidons, Molain, Jura, France

1350-6630 - Swimming at Cenote Ik Kil in Yucatan, Mexico, a natural pit, or sinkhole near Chichen Itza. Yucatan Peninsula, Quintana Roo, Mexico. Ik Kil was sacred to the Mayans who used this cenote for both relaxation and ritual services centuries ago.

1350-6633 - Gran Cenote de Tulum in Yucatan Peninsula, Quintana Roo, Mexico. There are thousands of cenotes dotted all over Mexico���s Yucatan Peninsula, and their existence is as much a defining characteristic of the region as is the distinct geological feature from which they result. Once revered by the ancient Mayans as sacred wells, they are now magnets for tourists, adventurers, and explorers alike.

1350-6628 - Cenote Ik Kil in Yucatan, Mexico, a natural pit, or sinkhole near Chichen Itza. Yucatan Peninsula, Quintana Roo, Mexico. Ik Kil was sacred to the Mayans who used this cenote for both relaxation and ritual services centuries ago.

1184-7702 - Stalactites, Drach caves, Porto Christo, Mallorca, Balearic Islands, Spain, Mediterranean, Europe

1184-7703 - Drach caves, Porto Christo, Mallorca, Balearic Islands, Spain, Mediterranean, Europe

1184-7701 - Drach caves, Porto Christo, Mallorca, Balearic Islands, Spain, Mediterranean, Europe

1184-7700 - Stalactites and stalagmites, Drach caves, Porto Christo, Mallorca, Balearic Islands, Spain, Mediterranean, Europe

1350-2338 - Cone forest inside the lake, Anhumas Abyss, Bonito, Mato Grosso do Sul, Brazil

989-421 - Flooded limestone cave interior with many stalactites and stalagmites and reflections, Drach caves (Cuevas del Drach), Mallorca, Balearic Islands, Spain, Mediterranean, Europe

989-420 - Ornate columns formed by many hanging stalactites and rising stalagmites coalescing, Drach caves (Cuevas del Drach), Mallorca, Balearic Islands, Spain, Mediterranean, Europe

989-422 - Limestone cave interior with many stalactites and stalagmites, Drach caves (Cuevas del Drach), Porto Cristo, Mallorca, Balearic Islands, Spain, Mediterranean, Europe

1184-4240 - Colourful Paradise cave, Phong Nha-Ke Bang National Park, UNESCO World Heritage Site, Vietnam, Indochina, Southeast Asia, Asia

1218-1111 - Carlsbad Caverns, The Big Room, UNESCO World Heritage Site, Carlsbad, New Mexico, United States of America, North America

1218-1112 - Carlsbad Caverns, The Big Room, UNESCO World Heritage Site, Carlsbad, New Mexico, United States of America, North America

832-382946 - Gruta de las Maravillas, lake in a cave, stalactites and stalagmites in a dripstone cave, Aracena, Huelva, Andalusia, Spain, Europe

832-383028 - Gruta de las Maravillas, lake in a cave, stalactites and stalagmites in a dripstone cave, Aracena, Huelva, Andalusia, Spain, Europe

1116-41577 - A Filipino Tour Guide Holds A Lantern Inside Sumaging Cave Or Big Cave Near Sagada, Luzon Philippines

1116-41579 - A Filipino Tour Guide Holds A Lantern Inside Sumaging Cave Or Big Cave Near Sagada, Luzon, Philippines

1116-41578 - A Filipino Tour Guide Holds A Lantern Inside Sumaging Cave Or Big Cave Near Sagada, Luzon, Philippines

832-379116 - Stalactite Cave, Boron Thor, Ban Bo Tho, Krabi, Thailand, Asia

1179-1293 - The natural show of Frasassi Caves with sharp stalactites and stalagmites, Genga, Province of Ancona, Marche, Italy, Europe

1179-1292 - The natural show of Frasassi Caves with sharp stalactites and stalagmites, Genga, Province of Ancona, Marche, Italy, Europe

857-91961 - Reed flute cave, Guilin, Guangxi region, China.

1178-24636 - View of cave, Carlsbad Caverns National Park, New Mexico

857-86794 - A cave explorer stands beside a large stalagmite in Hang Son Doong, Vietnam.

857-86805 - A caver is dwarfed by massive stalagmites in Hang Son Doong. Light can be seen coming in in the distance through the frist doline which is over 3 km away. Hang Son Doong is located in Phong Nha Ke Bang National Park, Vietnam.

832-74466 - Cave, Carlsbad Caverns National Park, New Mexico, USA

832-74469 - Calcite flowstone formation in the Big Room, Carlsbad Caverns National Park, New Mexico, USA

832-74463 - Chandelier, stalactite formation, Carlsbad Caverns National Park, New Mexico, USA

832-74474 - Chandelier, stalactite formation, Carlsbad Caverns National Park, New Mexico, USA

1113-82391 - Ruebeland stalactite caves, UNESCO Geopark, Harz Mountains, Saxony Anhalt, Germany

1113-27172 - Diver in Chandelier Dripstone Cave, Micronesia, Palau

1113-27173 - Diver at Entrance of Chandelier Dripstone Cave, Micronesia, Palau

857-80555 - The famous Parachute Shield in the Lehman Caves, Great Basin National Park, NV.

857-80554 - The famous Parachute Shield in the Lehman Caves, Great Basin National Park, NV.

920-1157 - Cone forest inside the lake, Anhumas Abyss, Bonito, Mato Grosso do Sul, Brazil, South America

920-1158 - Cone forest inside the lake, Anhumas Abyss, Bonito, Mato Grosso do Sul, Brazil, South America

746-63118 - Crystal Caves, Bermuda, Atlantic Ocean, Central America

746-63121 - Crystal Caves, Bermuda, Atlantic Ocean, Central America

746-63120 - Crystal Caves, Bermuda, Atlantic Ocean, Central America

746-63116 - Crystal Caves, Bermuda, Atlantic Ocean, Central America

746-63119 - Crystal Caves, Bermuda, Atlantic Ocean, Central America

817-105738 - Stalactites, Ruakuri Caves, Waitomo, King Country, North Island, New Zealand

817-105740 - Stalactites, Aranui Cave, Waitomo, King Country, North Island, New Zealand

817-105741 - Stalactites, Aranui Cave, Waitomo, King Country, North Island, New Zealand

759-6773 - Diver in Chandelier Dripstone Cave, Micronesia, Palau

759-6771 - Diver in Chandelier Dripstone Cave, Micronesia, Palau

759-6776 - Diver at Entrance of Chandelier Dripstone Cave, Micronesia, Palau

759-6769 - Diver in Chandelier Dripstone Cave, Micronesia, Palau

759-6775 - Diver at Entrance of Chandelier Dripstone Cave, Micronesia, Palau

759-6772 - Diver in Chandelier Dripstone Cave, Micronesia, Palau

759-6768 - Diver in Chandelier Dripstone Cave, Micronesia, Palau

759-6774 - Diver in Chandelier Dripstone Cave, Micronesia, Palau

759-6770 - Diver in Chandelier Dripstone Cave, Micronesia, Palau

788-14163 - Stalactites and stalagmites in a cave, Seven Star Cave, Guilin, China