Urvina Bay, Isla Isabela

Composed of five coalesced volcanoes, this is the largest island in the Galapagos and the most recently active, the latest eruption occurred in 2009. Here we will see large land iguanas, finches, and if lucky, a giant tortoise or two. In 1954, the intrusion of magma below one of the island's volcanoes caused part of the bay to be uplifted some 6 meters, and today we can walk through the remains of what was once a thriving underwater reef. Excursion options include a long, faster-paced hike with some rock climbing required, followed by an optional snorkel (if conditions allow), or a short walk and optional snorkel.