Discover the most beautiful caves in the world

The natural, splendid caves, with stalactites, stalagmites or lakes in the cave . are considered masterpieces available in many parts of the world.

Harrison Cave in Barbados Island, Caribbean, is the only cave in the world that has water flowing along cubes like multicolored crystals. The erosion of limestone blocks creates many large and small caves, with rock holes, lakes, streams and even waterfalls.

Phong Nha cave is the largest and most beautiful cave in Vietnam, recognized by UNESCO as a world heritage site. The cave is 7,729m long, consisting of 14 large and small continuous caves, with an underground river of nearly 14 km long and many stalactites and stalagmites. The river has two beautiful and wide sandy beaches, with the most beautiful rock shapes of the world. Recently, some consultants suggested cleaning the cave with bleach and building a path in the cave. However, this opinion is met with fierce opposition by domestic scientists.

Waitamo Firefly Cave, located in New Zealand's northern island, is especially home to billions of fireflies. The shapes of limestone in the cave are assumed to have formed about 30 million years ago, from the time they were underwater.

The crystal cave in Mexico contains the world's largest crystalline fragments located in Chihuahua, Mexico. The cave is 10m wide and 30m long, including giant selenite crystals up to 12m long, 4m radius and weighing up to 55 tons. Next time, this cave may no longer exist because of climate change.

Ali Sadr Cave is located about 100 km north of Hamadan, West Iran. Ali Sadr is the only cave where the water in the lakes of the cave is so clear that it can see the bottom at a depth of 5m, even when the light is dim. Stalactites come in many shapes like broccoli, conifers or umbrellas, with vibrant colors of red, purple, brown, green and blue.

The Golden Dragon Cave is located at the edge of Xixialing Hill, in the West Lake tourist area, Hangzhou City, Zhejiang, China, featuring semi-natural and semi-artificial scenes. But the most special thing is that Rong Vang cave includes many types of bamboo with different colors, from white, purple to green bamboo with yellow dots, or square bamboo and many other types.

Eisriesenwelt is a natural limestone cave located in Werfen, Austria, in the Tennengebirga mountain range near Salzburg, this cave is 42 km long and is considered to be the largest ice cave in the world.

Fifth in the world, Lechuguilla cave is located in Carlsbad Caverns, New Mexico National Park. This cave is famous for its unusual geographic structure with very rare shapes, and lemon yellow sulfur stones in pristine condition.