Cruises lure adults with spas, shows, and dinners.  But ships are increasingly using character meet-and-greets as a way to attract kids, young and old.

From Shrek to SpongeBob, lines are forging partnerships with entertainment groups to offer themed cruises featuring TV and film characters --which is a big draw for travelers with children.

Here are five lines that offer the littlest cruisers to get up close and personal with their favorite cartoon stars: