6 amazing excursions you’ll only find on an Alaska cruisetour

Alaska is a gigantic playground for outdoor enthusiasts, offering once-in-a-lifetime adventures unique to the 49th state.During an Alaska cruise, you can book a helicopter ride to land on a glacier and go dogsledding or take a journey on the historic narrow gauge railroad, the White Pass & Yukon Route Railway (also known as "The Scenic Railway of the World"), in Skagway; take a floatplane into a remote location for a bear-viewing adventure from Anchorage; or go crabbing in Ketchikan on the famed Aleutian Ballad from the Discovery Channel show "Deadliest Catch."If that's not enough excitement, you can ramp up the thrill level a few more notches with these six adventure-filled excursions. They are only available if you've booked a cruisetour (a type of package that combines a cruise with a multinight land-based tour) to Alaska and will be heading north to Denali and Fairbanks — or are independently traveling to the National Park and Fairbanks before or after your cruise. Large cruise lines offering cruisetours include Princess Cruises, Holland America Line, Celebrity Cruises and Norwegian Cruise Lines.Since these are small group tours and specialty excursions with limited space, ...