It was an accident for her to fall down to the ocean.
But it became an adventure to explore the mystery under sea level.
The surface layer of the ocean is known as the epipelagic zone and extends from the surface to 200 meters.
It is also known as the sunlight zone because this is where most of the visible light exists. With the light come heat.
It is the most lively level, where many of the ocean animals live.
200m
1000m
4000m
Below the epipelagic zone is the mesopelagic zone, extending from 200 meters to 1,000 meters. The mesopelagic zone is
sometimes referred to as the twilight zone or the midwater zone.
The light that penetrates to this depth is extremely faint.
The next layer is called the bathypelagic zone. It is sometimes referred to as the midnight zone or the dark zone. This zone extends from 1,000
meters down to 4,000 meters.
Here the only visible light is that produced by the creatures themselves.
The next layer is called the abyssopelagic zone, also known as the abyssal zone or simply as the abyss. It extends from 4,000 meters to
6,000 meters.
The name comes from a Greek word meaning "no bottom". The water temperature is near freezing, and there is no light at all. Very few creatures ca be found at these crushing depths.
It is forever darkness and coldness.