A caldera is a large depression or crater formed when a volcano collapses in on itself after a massive eruption. It is like a big hole or bowl-shaped feature on the Earth's surface. Full definition
Join for an amazing hiking experience in Bali to withness the spectacular sunrise overlooking Mount Rinjani towering Lombok island and the majestic view of giant crater of Caldera Batur with its amazing Lake Batur. (balihiking.com)
The Sierra Negra volcano is one of five volcanos on the island of Isabela, and boasts the second largest volcanic caldera in the world. (galapagosalternative.com)
Starting the Hike at Pura Ulundanu Batur at 05.00 am, then hike up until the crater rim of Caldera Batur. (balihiking.com)