Molokini Crater aerial view, Maui, Hawaii, USALava lake in the Erta Ale volcano, Danakil depression, EthiopiaDallol volcano in Danakil Depression, Afar Region, Ethiopia
Acid Lake, Kawah Ijen Crater, Banyuwangi Regency of East Java, IndonesiaVolcanic landscape in Lakagigar, Iceland highlands
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