Aquata and Marina's Mother, Sierra, had a horrific experience with the humans at Florida High many years ago. She seems to never let go of the story and has told it to both girls many times. Marina seems to want revenge on the humans because of this and for many reasons. Aquata seems to think the opposite and wants to prove that they are not that bad to her sister before she does harm. The whole existence of Florida's shores rely on Aquata..