Located to the west side of Isabela Island, Fernandina is the most western island in the Galapagos archipelago. It is covered in dark, rocky shores and black sandy beaches. The island is one of the largest pristine islands in the world, due to the fact that it has no history of introduced species. Fernandina is also the island with the most volcanic activity. The volcano Fernandina is still active to this day. It is 1,500 meters high with a diameter of 6.5 kilometers and a depth of about 800 meters. The islands young age, when compared to the other islands, is evident in the lack of signs of erosion and bareness of vegetation. When on Fernandina Island, visitors will tour Punta Espinosa, a small strip of sand and lava rocks that extends from the volcano and into the sea. Wildlife here is anything but ordinary. Yellow warblers, pelicans, frigates, mangrove finches, petrels and shearwater are only a few of the numerous bird species found in the Galapagos Islands. Visitors will also get a chance to see the black lava rock remains of past volcanic eruptions as well as the animal housing mangroves. Fernandina also holds the largest colony of marine iguanas. These reptiles are well known for their dependence on the sea for survival. The immense shield of Volcano Fernandina provides an impressive backdrop for Punta Espinosa, a narrow spit of sand and lava rock extending from the base of the volcano into the sea. This is a main attraction due to black lava rock, mangroves, and the stunning array of wildlife, especially birds. With its dark and rocky shores, black-sanded beaches, and frequent unexpected volcanic eruptions, Fernandina proves to be one of the most mysterious yet enchanting islands of the Galapagos.