From the blog "Tuesday Travel Tips"

Did you know? Repositioning cruises are a unique and affordable way to vacation and experience a number of ports around the world! Low prices, lots of relaxing sea days and interesting itineraries make a repositioning cruise an attractive vacation option. Most often taking place during the shoulder seasons of fall and spring, this interesting cruise option allows you to sail to unusual and off-the-beaten track locations when a cruise ship relocates to another region for the new season.