Deer Cave, Malaysia
Photo Credit: Robbie Shone / Barcroft Media / Getty Images
Deer Cave is one of the numerous caves located in Gunung Mulu National Park near Miri, Sarawak, Malaysia. It earned its name from the deer that frequent the cave to lick the salt rocks and take shelter. Formerly, Deer cave was known as the biggest cave passage in the world until it was surpassed by the discovery of Hang Son Doong Cave in Vietnam.
Over 3 million bats used the cave to roost with the top of the cave being approximately 460 feet tall. The cave’s shape and features are attributed to the geology of the island of Borneo, Malaysia itself. The limestone which the island is made of has slowly been eroded from precipitation and wind with rainwater slowly chiseling away at it as well.
The crystal cave coming up looks like it was man-made.