Amid a sea of gargantuan new mega ships, 2,214-passenger Island Princess, part of the Princess Cruises fleet since 2003, sits happily on the borderline of big and mid-sized. This has its benefits, namely being able to transit the existing Panama Canal, the reason Island Princess and its sister Coral Princess were built (although new, wider locks are scheduled to open in mid-2016). If you sail on this ship, you’ll either be cruising the Canal between the Atlantic and Pacific or admiring glaciers in Alaska. Repositioning cruises to either are good deals.