To the northwest, the Celebes Sea is separated from the Sulu Sea by a much shallower sill, dotted with coral reefs and islands. Only shallow, warm, and less saline water flows from the Sulu Sea into the Celebes Sea, so that incoming water doesn’t mix with the deep water of the Celebes Sea, either.
What is the size of Celebes Sea?
It has a surface area of 280,000 km2 (110,000 sq mi) and depth of 20,300 ft (6,200 m).