The two kilometer wide Waba Crater was formed when a volcano erupted underground in an enormous steam explosion when molton lava came into contact with underground water. The entire bottom of the crater with its white lacy edges against the dark volcanic earth background is actually made of salt crystals. To see more photos and learn more about Waba Crater,
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Stunning, both this one and your previous set. I'd like to get down in there (with great care) and see the place for myself.
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