The most beautiful underground caves have been converted into display caves for visitors.
Mulu Caves Located in Gunung Mulu National Park in Borneo, one of the top tourist attractions in Malaysia, the park features amazing caves in a mountainous tropical rainforest environment.
The Sarawak Chamber was found in one of the underground caves, at least 70 meters high and 2,300 feet wide. It is the largest cave room in the world, large enough to accommodate about 40 Boeing 747s.
Red Flute Cave
Red Vault Cave, otherwise known as the Palace of Natural Arts, is located in northwest Guilin in southern China.
According to legend, people believed that the reeds at the entrance to the cave could be turned into flutes, and the limestone cave offers an imaginary land of stalactites, stone pillars, curtains, birds and animals in exquisite shapes and colors.
Caves of crystals were discovered in the year 2000 by miners who dug a new tunnel for the Naica mine in northern Mexico, and the main chamber contains the largest natural crystals that have been found.
The largest crystal found is 11 meters long and 55 tons in weight.
The crystals are large due to the extreme temperature inside the cave, which allowed microscopic crystals to form and grow.
Puerto Princesa Underground River
Puerto Princesa River lies underground in a forest-covered mountain range on the northern coast of Palawan Island in the Philippines, until it was discovered in 2007 for an underground river in Mexico's Yucatan Peninsula.
Known as the world's longest underground river, the Puerto Princesa Underground River is 8.2 km in length and has a beautiful landscape before emptying into the South China Sea.
One of New Zealand's top tourist attractions, the Waitomo Caves are located outside the main town of Waitomo, and are home to the famous Waitomo glowworms. They are small and feel glowing light. The cave features majestic cave decorations and a deep limestone column.
Jinn Majlis Cave
Majlis al-Jin Cave is one of the largest underground caves in the world, located in a remote area of the Salma plateau in Oman. High experience.