Holland America Line has added three new selections to its 2012 Alaska Cruise Tour options. The luxury cruise liner now offers the only one-night and three-night adventures through Denali. The itinerary of the new cruises puts travelers on both a luxury cruise ship and the McKinley Explorer, a built-for-sightseeing dome train, on the very same day. The Alaska Cruise tour shows vacationers the wilder side of the state with emphasis on wilderness, wildlife, native culture, and history. There are longer tours available that range from 10 to 20 days. The new tours include the company’s first round-trip adventure from Seattle as well as the new one and three-day cruises.