From the depths of the Beaufort Sea to the mysterious Greenland Sea, our oceans are home to many weird and wonderful creatures. And one of the best ways to explore the wildlife in our coldest oceans is on a cruise. Whether you’re setting off on a cruise to Alaska or journeying to Iceland, look out for majestic orcas and humpback whales. If you’re closer to shore, keep an eye out for the playful harp and Weddell seals. Find out more about these fascinating creatures and where they live as well as facts about earth’s coldest oceans in our handy guide below.