The Celebes Sea (, ) of the western Pacific Ocean is bordered on the north by the Sulu Archipelago and Sulu Sea and Mindanao Island of the Philippines, on the east by the Sangihe Islands chain, on the south by Sulawesi's Minahasa Peninsula, and on the west by northern Kalimantan in Indonesia. It extends 420 miles (675 km) north-south by east-west and has a total surface area of , to a maximum depth of . South of the Cape Mangkalihat, the sea opens southwest through the Makassar Strait into the Java Sea.