The Pacific Ocean is the no. 1 contiguous open water surface on earth. It has a huge, 60,060,700 square mile (155,557,000 square km) area and 13,215 square feet (4,028 square meters) average depth. The Pacific Ocean’s greatest known depth is 36,198 feet (11,033 meters), found at Mariana Trench.
The Pacific Ocean is the largest of the world’s five oceans (followed by the Atlantic Ocean, Indian Ocean, Southern Ocean, and the Arctic Ocean). Strategically important access waterways include the La Perouse, Tsugaru, Tsushima, Taiwan, Singapore, and Torres Straits.
The International Hydrographic Organization’s decision to delimit a fifth ocean, the Southern Ocean, removed the portion of the Pacific Ocean south of 60 degrees south.