The average depth of the ocean is about 3,682 meters (12,080 feet). The deepest part is the Challenger Deep in the Mariana Trench of the Pacific Ocean, which measures approximately 10,935 meters (35,876 feet) deep, or about 6.8 miles. This is the deepest known point in Earth's oceans. The ocean bottom is not flat, with varying depths across different areas. The ocean is divided into zones based on depth, ranging from sunlight-rich surface layers to the deep, dark trenches where life is specially adapted to extreme pressures.
