1/75 Essential Expedition CruisesThe marine iguana is unique to the Galapagos, a destination best discovered by cruise. // © 2015 ThinkstockPreviousNext2/75 Essential Expedition CruisesSpot seals on an Antarctica cruise expedition. // © 2015 ThinkstockPreviousNext3/75 Essential Expedition CruisesFar North sailings may occur during the Northern Lights. // © 2015 ThinkstockPreviousNext4/75 Essential Expedition CruisesNow is the time to visit Myanmar, which has only recently opened its door to tourists. // © 2015 ThinkstockPreviousNext5/75 Essential Expedition CruisesYangtze cruises may stop in Shanghai. // © 2015 ThinkstockPreviousNext6/75 Essential Expedition CruisesSeabourn is one of the cruise lines sailing the Antarctic. // © 2015 Seabourn Cruise LinePreviousNext7/75 Essential Expedition CruisesClimbing Shibaozhai Pagoda is one of the cultural highlights of a Yangtze River cruise. // © 2015 ThinkstockPreviousNext