For the interesting ports. Malta, Cagliari, Algiers, Tunis all places we'd never been... and at a time of year when they were comfortable. We met wonderful people, two couples have become such good friends we've traveled with them since. The Viking Sea ia a wonderful ship, and don't forget to check out the Spa- it's free and the 'snow room' is so invigorating!
Each port activity is well organized. So many things included! And the convenience of not having to unpack yet having new experiences each day was great.
The ship is a great size, meals are structured or on your own. Wonderful food and great new friends, what could be better?