The Darvaza gas crater also referred to as the Door to Hell or the Gates of Hell, is a natural gas ground in Turkmenistan that disintegrated into a cavern. There are no meticulous statistics of how the crater sparked, and some information is contested. One of the more theoretical approaches holds that Soviet geologists deliberately set a fire in 1971 to avoid the growth of methane gas and that it has been burning ever since. The gas crater is 5,350 m2 in size. The crater attracts a lot of the tourist population and has become a tourist destination. The immediate region is also well-known for its wild desert camping.