There are hundreds of magnificent senior cruises around the world. You should consider checking out this website for all you need to know about great cruises for senior citizens. cruises.about.com/od/seniorcruises/Cruises_for_Senior_Citizens.htm
Royal Caribbean or Norwegian Sky cruise.
You should be able to find many cruises that cater to senior citizens. Because most seniors are already retired they are the ones who have time for cruises.
Try carnival cruise lines. It's a big cruise ship that has about twenty floors and elevators! If you feel like spending money than try Disney cruise lines.
The cruise line that is offering the best deals to the Bahamas is the Carnival Cruise Line, in the Carnival Fantasy. The current price is around $400.
In my opinion,, they would be: Norwegian Cruise Line Royal Caribbean Cruise Celebrity Cruise or Carnival
The best family cruise lines according to Cruise Critics are Carnival Cruise Lines, Celebrity Cruises, Disney Cruise Line, Norwegian Cruise Line and Princess Cruises.
The Carnival Cruise line is a great cruise line for going to Bermuda. There are also other cruise lines that go to Bermuda such as Royal Carribbean and it depends on the ammenities needed for the cruise.
If you mean which cruise line carnival owns, than Cunard. Cunard is the most luxurious cruise line in the world. If you mean which carnival cruise ship is the best, then the Carnival Miracle. It is the highest rated Carnival Ship on CruiseCritic.com
I would suggest trying to look at some travel sites such as Travelocity, Priceline, expedia or go directly to the cruise line sites such as Royal Caribbean, Princess, Norwegian, or Carnival.
They would be: Norwegian Cruise Line Carnival or Celebrity.
The best is single cruise they offers like a meet and greet so that you can meet other singles.Also caribbean cruise line offers great deals on a single ticket.
Cruise lines vary on the person. Carnival cruise lines are saidd to be a top choice but research each cruise line to ensure it accomodates your specific needs