Alaska Journey (10 days / from USD $3799) – Discover the raw beauty of Alaska while exploring awe-inspiring coastlines and watch for wildlife like orcas, grizzly bears, caribou and moose. Take a behind-the-scenes tour of the renowned Alaska SeaLife Center, a marine research facility that has collaborated with National Geographic on numerous projects, then set out by ship to explore the Kenai Fjords and look for glaciers, seabirds, puffins, sea lions and whales