On a sunny day, with waves splashing in the warm waters, Emma is slowly swimming through her favorite spot of the ocean. The waves gently rock her body and the seaweeds brush up against her tail as she swims down and then quickly glides past them. She swims deeper into the ocean, the corals are more abundant, her tail flapping quickly to allow her to swim faster.

Suddenly, she heard a sound of something crashing through the water close to her and she stops in her tracks to look around.