Holland America Line will have eight ships providing Alaska itineraries next summer, sailing from Seattle and Vancouver, the premium cruise line announced on Wednesday. Holland America provides three main itineraries: Glacier Bay Inside Passage Cruises, Glacier Discovery and Alaskan Explorer Cruise. From May 3 through September 21, the line will feature two ships, Oosterdam and Westerdam, which will operate the Alaskan Explorer itinerary from Seattle. The remaining five ships--Ryndam, Statendam, Veendam and Zaandam--will operate out of Vancouver. Visit [www.hollandamerica.com].