Famous caves in the world

Changes in weather, earthquakes, the effects of nature . over a long period of time have created wonderful natural caves in the world that amaze people.

15 famous grotto caves

1. Son Doong Cave belongs to Phong Nha Ke Bang National Park (Quang Binh province)

The world's largest cave, the most beautiful stalactite, the longest underground river cave .

Son Doong Cave was discovered by a local people for the first time in 1991, but it was not until the expedition of the Royal Cave Association explored in 2009 that this place was known to many people. Photo: Giant stalagmites in the cave can be as high as 40m.

2. Crystal crystal (Mexico) - the largest natural crystal cave in the world

Famous as a Mexican crystal cave, Cueva de los Cristales (Cave of Crystals) are the largest natural crystal cave in the world with 11m high transparent crystal beams. Located deep inside the mountain of Naica and below the ground 290m, this cave has a horseshoe-shaped shape, the main material is limestone, 10m wide, 30m long.

The seismic events that occurred about 26 million years ago created the mountain of Naica , covering it with a very thick layer of anhydrous plaster. When magma cools, the temperature drops, the gypsum begins to decompose, mixing into the source of sulfate and calcium salts. Over the years (millions of years), the mixture became sediment deposited in the caves and formed giant crystals like today.

3. Majlis al Jinn cave (Oman) - the second largest cave in the world

Majlis al Jinn is the second largest cave in the world, located in the mountains of Selma Plateau , 1600m above sea level, belonging to the kingdom of Oman. This cave was discovered in 1983 by Don Davidson, a geologist studying water resources in Oman. Davidson died mysteriously about 10 years later when he left Oman to conquer the Andes.

To enter this cave, one must use a rope to climb down through a hole in the ground. The inside height of the cave ranges from 120 to 150m, the cave floors can be as high as 300 and this cave is so large that it can fit into the Egyptian pyramid of Giza.

(Photo: National Geographic)

4. Waitomo Glowworm (New Zealand) - the heaven of fireflies

The Waitomo Glowworm cave of North Island, New Zealand is well known because it is home to millions of fireflies - the firefly has the scientific name Arachnocampa. The fireflies in this cave release the silk, if the nest is on the ceiling, then they hang themselves on those delicate threads and glow. At night, visitors coming here will enjoy the feeling that they are lost in a paradise filled with magical light.

Although watching the light emitted by these fireflies is an interesting thing, but many people think that glowing fireflies are a bad omen and look like glimmering light like ghosts wandering in caves like maybe looking for something.

5. Eisriesenwelt Ice cave (Austria) - the largest ice cave in the world

There are many ice caves in the world but the Eisriesenwelt cave complex in Austria is the largest ice cave known to man. Eisriesenwelt lies in the heart of the Tennengebirge mountain range near Salzburg and stretches for 40km. Because this is a very large and cramped cave like a labyrinth, only a small part of this ice cave population is open to visitors. Anyone who comes here has a different feel from other caves that bring them, thinking like being lost in a completely different world - a world they can't stop exploring.

6. Ghost cave (Venezuela)

" Cueva del Fantasma " in Spanish means ' ghost ghost ' is a cave so large that 2 helicopters can naturally ' thrust ' vertically in it. The most special feature of the ghost cave is the waterfall that flows from the top of the mountain, through the cave, into a small lake below. This is also the place where people discovered many strange animals such as frogs with scientific name Colostethus.

7. Fantastic Pit Cave (USA) - America's deepest cave

The depth of the Fantastic Pit is nearly 180m, making it the deepest cave in the Americas that people have discovered so far. It has been measured that it takes 8 seconds for a stone to be released from the cave to reach the bottom of the cave.

8. Dongzhong Cave (China) - the only cave school in the world

Not only is famous a very interesting cave that Dongzhong is also a school of a few dozen children. This is the place where elementary school students in Miao Village in Ziyun County, Guizhou Province, China come to learn the words. All the cliffs surrounding the cave are great sculptural masterpieces created by wind, water and earthquakes.

(Photo: Unusuallife.com)

9. Marble Cathedral Cave

In the Patagonia region, Chile is considered a perfect artifact of nature. This place is also known as the Blue Cathedral , because the natural curve of marble makes visitors think of the dome architecture of European churches.

When the sun shines down, it will create a sparkling reflection effect on the cliff, which is very attractive with the blue water.

10. System of Batu Caves, Malaysia

Consisting of three large caves and many small caves scattered on the limestone mountain of about 400 million years old, about 13km from the city. This is the most sacred place of Hindus (Hindu) in Malaysia.

11. The Algarve Cave

Formed by rock erosion effects of ocean waves. This famous attraction is located on the smooth white sandy beach in the southernmost of Portugal.

12. Vatnajokk Glacier

It is a cave formed from Europe's largest glacier. Iceland's cave attracts many adventurers, although it is quite dangerous because the glaciers are constantly changing and breaking.

13. Visit Lod

One of Thailand's largest ancient caves, located in Pang Mapha city. This is a cave with the highest stalactite columns in the world 62 meters.