Whittier's deepwater harbor sits at the convergence point of twenty-six active tidewater glaciers, a density unmatched anywhere in North America. The town itself occupies a narrow strip of land wedged between Passage Canal and the Chugach Range, accessible only through the Anton Anderson Memorial Tunnel — at 2.
5 miles, the longest highway tunnel in North America and the only land route into Whittier. The port was constructed by the U.S. Army in 1943 as a strategic supply depot, chosen for its ice-free waters and concealment from Japanese reconnaissance flights. After the 1964 earthquake — magnitude 9.2, the most powerful recorded in North American history — destroyed much of the original waterfront infrastructure, the harbor was rebuilt as a civilian cruise terminal and commercial fishing base.
Prince William Sound functions as a glacial nursery. The Chugach Mountains trap moisture from the Gulf of Alaska, generating annual snowfall that exceeds forty feet at higher elevations. That accumulation feeds the piedmont ice fields that calve into the Sound's fjords. Blackstone Glacier, the most frequently visited, advances roughly three hundred feet per year, a rate that produces near-daily calving events visible from vessel decks. The 26 Glacier route, pioneered in the 1960s by local operators, threads through College Fjord and Harriman Fjord, each named for East Coast universities whose expeditions charted the region in 1899. Harvard Glacier anchors the innermost reach of College Fjord, its face rising two hundred feet above the waterline and extending another four hundred feet below.
Whittier boat cruises operate year-round, though the May-through-September season offers the longest daylight windows and the highest probability of wildlife encounters. Harbor seals haul out on icebergs calved from retreating glaciers, using the frozen platforms as nurseries for spring pups. Sea otters raft in kelp beds near the harbor entrance, their populations rebounding after the 1989 Exxon Valdez spill reduced local numbers by seventy percent. Humpback whales return to the Sound each April, feeding on herring and capelin schools that concentrate in the nutrient-rich waters where glacial melt meets tidal currents. Most glacier cruises depart from the Small Boat Harbor at 100 West Camp Road, a facility that accommodates both commercial tour vessels and the Alaska Marine Highway ferry terminal. Departures align with tunnel schedules — the single-lane bore operates on a timed rotation, alternating vehicle flow every fifteen minutes during peak hours.
5 hr 30 min
