Caldeira Segara Anak, Volcanic caldera in Lombok, Indonesia.
The Segara Anak caldera contains a deep blue lake surrounded by steep cliffs and stands at the base of Mount Rinjani volcano.
The caldera formed through the catastrophic eruption of Mount Samalas in 1257, which produced volcanic plumes reaching 43 kilometers in altitude.
The Sasak people regularly conduct ceremonies and pilgrimages to the lake within the caldera to present offerings to nature spirits.
The caldera trek requires multiple days of hiking with experienced guides, with April through December providing the most suitable weather conditions.
Scientists identified this caldera as the source of volcanic ash deposits found in Greenland ice cores, linking it to medieval climate changes.
GPS coordinates: -8.40785,116.41405
Latest update: March 2, 2025 23:54
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