Galle is the capital of the Southern Province of Sri Lanka and one of the important cities in Sri Lanka, with an area of 17 square kilometers and a population of 100,000. Galle is a port city in the southwest of Sri Lanka, and from the 16th to the 17th century, it was a famous commercial center and main port in the East. Galle is a coastal city in the south of Sri Lanka, it is famous for its castles, which have been listed as a World Heritage Site.