Barbie: Dolphin Magic (2017)

Barbie and her sisters travel to a sun-kissed island resort to visit their friend Ken, who is spending the summer as an intern at a beautiful coral reef. Their trip turns into an unexpected adventure when they discover that a rare Gemstone dolphin has gone missing. With help from a mysterious new friend named Isla, Barbie sets out to find the dolphin while wondering what secret Isla is keeping.