Isabela Canton is a canton of Galápagos Province, Ecuador, consisting of the islands of Isabela Island, Darwin, Fernandina, Wolf, and some mi…Isabela Canton is a canton of Galápagos Province, Ecuador, consisting of the islands of Isabela Island, Darwin, Fernandina, Wolf, and some minor islets. Isabela is the largest island in the Galápagos, and well known for its beaches, bays and coastal lagoons with a wide variety of plants and birds. The capital of the canton is Puerto Villamil.