Isabela Island, the largest of the Galápagos Islands, is shaped like a seahorse and was formed by the merging of six shield volcanoes, some of which are still active today. Its dramatic landscapes range from lava fields and mangrove fringed shores to lush highlands filled with unique wildlife. The island is home to more wild giant tortoises than anywhere else in the archipelago, as well as marine iguanas, penguins, flightless cormorants, and blue footed boobies. Snorkelers and divers often encou

Lisa Cho