Galle (Sinhalese: ගාල්ල; Tamil: காலி) is a major city in Sri Lanka, situated on the southwestern tip, 119 km from Colombo. Galle is the administrative capital of Southern Province, Sri Lanka and is the district capital of Galle District. 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. Important natural geographical features in Galle include Rumassala in Unawatuna.