Galle is the administrative capital of Southern Province, Sri Lanka, and is the district capital of Galle District. The Galle lies at 9m above sea level. The average annual temperature is 26.6 °C in Galle. The average annual rainfall is 2426 mm. Galle was known as Gimhathiththa before the arrival of the Portuguese in the 16th century, when it was the main port on the island. Galle reached the height of its development in the 18th century, during the Dutch colonial period. Galle is the best example of a fortified city built by the Portuguese in South and Southeast Asia, showing the interaction between Portuguese architectural styles and native traditions. The city was extensively fortified by the Dutch during the 17th century from 1649 onwards. The Galle Fort is a world heritage site and is the largest remaining fortress in Asia built by European occupiers.
Other prominent landmarks in Galle include the city’s natural harbor, the National Maritime Museum, St. Mary’s Cathedral founded by Jesuit priests, one of the main Shiva temples on the island. Important natural geographical features in Galle include Rumassala in Unawatuna, a large mound-like hill that forms the eastern protective barrier to Galle Harbour. Local tradition associates this hill with some events of Ramayana, one of the great Hindu epics.