Let your imagination run wild, and you'll be sure to find... Barbie! She can do things and go places that others only dream of. Whether she's a member of royalty from long ago or a mermaid living under the sea, Barbie still knows how to be the best friend ever! Barbie is a mermaid who loves adventure! So when some whale pals invite her on a trip up north, how can she resist? Barbie experiences all sorts of new things. And she can't wait to tell her sisters all about it - especially the part where she meets a real, live human!