The Galapagos Islands are so isolated that many animals living there have evolved into entirely new species from their mainland counterparts, and the sea lions that make their home on the islands are no different. They are a subspecies of the California sea lion and can often be seen sunning themselves on the island shores in large groups. Nature travel enthusiasts on International Expeditions’ Galapagos Islands cruises will spend seven days in the constant company of these marine mammals as they sunbathe and splash in the cool Pacific waters.