On the shores of Isla de las Mujeres, a curious and kindhearted girl named Marisol begins to hear something strange in the rhythm of the waves-whispers of the past, dreams of the deep, and the distant call of an ancient sea turtle named Kalea.

When Marisol discovers a carved shell half-buried in the sand, she embarks on a journey to uncover a long-lost message-one passed down through centuries by a turtle who has seen the rise of villages, the arrival of ships, and the loss of her coral kingdom.

Guided by her wise Abuela, a hidden cave of symbols, and the turtle's final return, Marisol learns that true listening requires more than ears-it requires heart, courage, and action.

As Marisol grows into a leader for island and sea conservation, she inspires a generation of young "Tortuga Guardians" and proves that a single voice, like a single wave, can spark a sea of change.