A few of the cruise lines that can take you to Alaska are: Norwegian Cruise Line, Carnival Cruise Lines, and Holland American Line. All of these cruise lines are suited for adults and families.
Holland America Cruise Lines runs numerous cruises to Alaska on many different routes. Another company that offers cruises to Alaska is Celebrity Cruise Lines.
Some popular cruise lines that offer an Alaska tour are : Flemming Tours & Cruises,Inc.(http://www.flemmingtoursandcruises.com/);Holland America Line(http://www.hollandamerica.com/) AND Alaska By Sea (www.alaskabysea.com/alaska-cruise-faq.php)
There are several cruise lines that have ships that sale around Alaska. Among them are the Norwegian Cruise lines, Carnival Cruise lines, Princess Cruises, Celebrity Cruise lines, Royal Caribbean and more.
This depends on where you are planning to go. Carnival Cruise Line is fairly common and can take you to Mexico, Europe, South America and Alaska, to name a few.
There are very great cruise lines in Alaska. To name a few popular ones, you could consider Norwegian Pearl, Disney Wonder, Carnival miracle and Sapphire Princess.
A Fly cruise is a cruise that you have to fly out to get to the port. For example, if I, a resident of the UK, wanted to go on a cruise to Alaska, instead of getting a boat from here to Alaska that would take me a week at least, I can fly out to Alaska and get on a cruise which leaves from there.
There are several cruise ships that have holidays in Alaska. You can try contacting NCL or Norwegian Cruise Lines, or HollandAmerica websites. You might also find them listed at your local travel agent.
There are a variety of cruises that adults take to visit Alaska. One cruise for adults only is www.adultonlycruise.net/alaska.php. Another is Alaskan Lifestyle Swingers cruise, www.trysttravel.com/...cruises/alaskan-lifestyle-group-cruise-2011.
Royal Caribbean or Carnival cruises.
www.singlescruise.com can help you to find cruses for singles. One they list is the 10-Night Baby Boomer Eastern Caribbean Islander Singles Cruise From Ft. Lauderdale. Carnival, Norwegian, Princess, and Celebrity cruise lines all offer singles cruises to Alaska. Singles groups plan trips aboard cruises at various times and on various cruise lines.
I beleive that all major cruise lines will make a trip to alaska. I am not aware of any particular cruise lines that specificlaly cater to that area.
To get a cruise to Disney world you will need to take a cruise on Disney cruise lines. I don't believe they allow and other cruise lines to dock at the park. However you could go to Florida and see the park then take a cruise from a near by port.