In the beginning this area was discovered by the lio Van Such Telen, a citizen of the Dutch Father and Mama Lio, in 1915. Its beauty is widely known after Y. Bouman described in his writings in 1929. Since then foreign tourists began to come to enjoy the lake which is known to be haunted for the local community. . Those who came were not only lovers of beauty, but also researchers who wanted to know about the extremely rare natural events.
The Kelimutu area has been designated a National Nature Conservation Area since February 26, 1992.