Isabela Island is the largest of all the Galapagos Islands, about 120 km long, and is peculiarly shaped like a sea-horse! It is one of the few islands that are populated. The last census that was taken estimated about 2,200 people living on the Southern part of the Island. The island was formed by 6 different shield volcanoes from North to South that erupted continuously, eventually joining together to form on entire land mass. Of all the islands in the archipelago, Isabela is the most active with the latest eruption coming from Wolf Volcano in May of 2015. There are lots of unique wildlife on Isabela such as the pink iguana, and more wild tortoises than any other island with a different type of species near each of the 6 volcanoes.
On Vicente Roca Point the geological formations are simply outstanding and it is a great place to view various bird species such as blue-footed boobies, Nazca boobies, gulls, storm petrels, and brown noddy terns. Activities here are all done on the water by either dinghy or panga, or snorkeling. On this western part of the island the Cromwell Current provides cold water and many nutrients. Due to this it is possible to see various feeding frenzies of an assortment of animals such as whales, dolphins, sea lions, and marine birds diving. At times it may also be likely to see fur seals.
In Fernandina Island, no foreign species have ever invaded it and therefore it is one of the world’s most pristine island ecosystems. It is one of the most active islands and is the westernmost island in the archipelago. The volcano “La Cumbre” dominates the landscape with lava fields reaching the ocean. The Cromwell Current also flows on the west making the cold and nutrient-rich water an ideal habitat for the Galapagos Penguin and Flightless Cormorant that nests here.
