Is Sulu sea part of South China Sea?

The Sulu Sea is a body of water in the Southwestern area of the Philippines, separated from the South China Sea in the northwest by Palawan and from the Celebes Sea in the southeast by the Sulu Archipelago. Borneo is found to the southwest and Visayas to the northeast. The Sulu Sea contains a number of islands.

Are there tourists in Sulu Sea?

There are a lot of resorts especially in Palawan like in Cuyo Island.