As each green wave rose from the churning water, it illuminated within itself the six- or eight- foot- long bodies of twisting sharks. I would say this conveys a feeling of danger and apprehension as if leading up to a possibility whereby someone could get hurt by the sharks.
College is not for everyone because some people don't want or need higher education in order to do what they need and want to do in life.
Its the most intense, exciting, or important part of the story. Its when conflict is the highest.
Unpredictable
Wild
Changeable
Highly Variable