The state of Alaska is enormous, and more than half of it is wilderness—so it should come as no surprise that a majority of Alaska tours are focused on exploring the great outdoors. You can go for a hike on icefields, take a boat ride to look for whales, get a bird’s-eye view of glaciers and fjords from a helicopter, marvel at the scenery in Alaska’s national parks, stay up late to see the northern lights, and hop on a dog sled. There are also tours in some of Alaska’s most popular cities, including expert-led sightseeing and foodie adventures.