Best Show Cave

The Puerto Princesa Underground River is a remarkable cave system within a karst landscape in Palawan, Philippines. It features a navigable river flowing through an extensive limestone cavern – one of the longest underground rivers in the world. Designated a UNESCO World Heritage site, it’s notable...

Carlsbad Caverns National Park protects an extensive limestone cave system within New Mexico’s Guadalupe Mountains. The park is notable for its dramatic Big Room, one of the largest single chambers in any North American cave. These caves represent significant karst topography and are a UNESCO World...

Phraya Nakhon Cave is a significant karst formation within Khao Sam Roi Yot National Park, Thailand. The cave system features impressive limestone formations and contains the Royal Pavilion, constructed in 1890 for King Chulalongkorn. It’s a popular attraction for visitors interested in Thai history...

Modra Špilja, or Blue Cave, is a karst sea cave located on the island of Biševo in Croatia. Its significance stems from unique geological formations and the resulting optical phenomenon. Sunlight entering through an underwater opening creates intense blue light displays within the cave system. This...

Paradise Cave in Phong Nha-Ke Bang National Park, Vietnam, stretches 31 km in length, was discovered in 2005, and is celebrated for its vast cathedral-like limestone chambers.

Jenolan Caves in New South Wales, Australia, are a protected limestone karst region notable for being among the world's oldest discovered cave systems.

Cave system in Le Marche, Italy, discovered in 1971 and among the largest in Europe, with over 30 km of passages including massive stalactite and stalagmite formations.

Zhijin Cave is a massive limestone cavern in Guizhou, China, recognized as a UNESCO Global Geopark and famous for its extraordinary diversity of rare stalactite and stalagmite formations.

The Grotte de Pech Merle in France is a decorated karst cave notable for its prehistoric spotted horse paintings dating back 25,000 years.

The Gouffre de Padirac is a large karst chasm in the Lot region of France, explored since 1889, featuring an underground river navigable by boat.

Jewel Cave in South Dakota, USA, is the third-longest cave system in the world, notable for its extensive calcite crystal formations called nailhead and dogtooth spar.

Aven Armand is a limestone cave in southern France, notable for a vast chamber containing over 400 spectacular stalagmites, discovered in 1897.

Tham Nam Lod is a river cave in Mae Hong Son, Thailand, notable for its massive stalactites and ancient teakwood coffins dated to over 1,000 years ago.

The Grotte de Han-sur-Lesse in Belgium is an immense karst cave system carved by the Lesse River, featuring spectacular geological formations.

Furong Cave is a limestone cavern in Chongqing, China, designated as part of the Wulong Karst UNESCO World Heritage Site in 2007 due to its pristine and vivid calcite crystal formations.

A national park cave system in Guerrero, Mexico, featuring two large interconnected caverns with chambers up to 80 meters high, open to visitors since the 19th century.

The Grotte de Rouffignac in France is a large karst cave containing over 250 prehistoric engravings and drawings, including numerous mammoth depictions.

Marble Arch Caves in County Fermanagh, Northern Ireland, offer boat tours through an underground river system and are part of a UNESCO Global Geopark.

Ali Sadr Cave in Hamadan Province, Iran, is one of the world's largest water caves, featuring an extensive network of boat-navigable underground waterways.

Al Hoota Cave in Oman's Al Hajar Mountains is the country's only public show cave, notable for a rare resident population of blind cave fish in its underground lake.

Seven Star Cave (Qixing Yan) is a prominent limestone cave system in Guilin, China, distinguished by its massive illuminated stalactites, deep chambers, and historical stone carvings.

Harrison's Cave in Barbados is a notable crystallized limestone cavern system featuring massive flowstone columns, re-discovered and mapped in 1976.

Tenglong Cave is an enormous limestone cave system in Hubei, China, recognized as one of the country's longest caves, featuring a massive dry cave and a separate active underground river.

The Grotte des Demoiselles is a limestone cave in southern France, renowned for its immense cathedral-like chambers and large stalactites.

Cueva de los Verdes is a volcanic lava tube on Spain's Lanzarote island, renowned for its striking formations and a unique subterranean auditorium used to host classical music concerts.

A cave in Monagas state, Venezuela, declared the country's first natural monument in 1949, named for the oilbirds that roost in large colonies within its interior.

The Grotte de Baume-les-Messieurs is a limestone show cave in eastern France featuring dramatic underground lakes and spectacular large stalactites.

Yarrangobilly Caves in New South Wales, Australia, are notable limestone formations recognized for hosting a naturally heated underground thermal pool.