Caldeira do Inferno on Monte da Guia on the island of Faial, Azores, Portugal RM
Dirk Renckhoff/imageBROKER/© Dirk Renckhoff/imageBROKER
This ancient volcanic rock formation, dubbed the Caldeira do Inferno (Hell’s Cauldron), has prime views over Horta and Porto Pim Bay. Its two craters filled with seawater to form a figure eight, which provided a safe haven for several endemic species to flourish through the years, leading to its classification as a Special Protection Area for its fauna.
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