3 Best Sights in Prince William Sound, The Kenai Peninsula and Southcentral Alaska

The mountains surrounding Portage Glacier are covered with smaller glaciers. A 1-mile hike off Byron Glacier Road—the trail begins about a mile south of Begich-Boggs Visitor Center—leads to the Byron Glacier overlook. The glacier is notable for its accessibility—this is one of just a few places where you can hike onto a glacier from the road system. In summer, naturalists lead free weekly treks in search of microscopic ice worms.

A visit to Columbia Glacier, which flows from the surrounding Chugach Mountains, should definitely be on your Valdez agenda. Its deep aquamarine face is 5 miles across, and it calves icebergs with resounding cannonades. This glacier is one of the largest and most readily accessible of Alaska's coastal glaciers. The state ferry travels past its face, and scheduled tours of the glaciers and the rest of the sound are available by boat and aircraft from Valdez, Cordova, and Whittier.

The glacier is a frequently visited tourist destinations. A 6-mile side road off the Seward Highway leads to Begich-Boggs Visitor Center on the shore of Portage Lake, named after two U.S. congressmen who disappeared on a small-plane journey out of Anchorage in 1972. The center is staffed by Forest Service personnel, who can help plan your trip and explain the natural history of the area. A film on glaciers is shown hourly, and icebergs sometimes drift down to the center from Portage Glacier. Due to global climate change, Portage, like most of the glaciers in Alaska, has receded greatly in recent years, and it's no longer visible from the road. However, you can view it on a scenic cruise or via a hike.