Quasar Expeditions is for adventurers. The highly specialized itineraries are designed to make guests feel like they're James Cook or Charles Darwin. "Quasar Expeditions' guides are the ultimate, passionate gatekeepers to the Galápagos Islands," one reader said. "Their enthusiasm and love of the islands and the wildlife encourages you to share in their passion and desire to conserve the natural beauty and habitat of the area while still allowing low-impact tourism."