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.

Sign up for our newsletter
Join more than a million of the world’s best travelers. Subscribe to the Daily Wander newsletter.
More From AFAR