Phaselis Ancient City is a historic site located in Kemer district of Antalya. The ancient city contains ruins belonging to the Lycian culture including structures such as the theater, agora, bathhouses, walls and port ruins. Phaselis was founded in the 7th century BC and served as an important port city due to its location on the trade route. During the Roman Empire era, the city flourished and hosted large construction projects. The aqueducts and water channels built for Phaselis' water supply demonstrated the advanced engineering skills of that time. Phaselis was a walled city with three harbors. Excavated ruins include structures such as the theatre, bathhouses, agora, necropolis, monumental gate, stadium and aqueducts. Additionally, the cisterns lining the main street were used to meet the water needs of the city. The ancient city also includes natural beauty. Between mountains located on the north and south, Phaselis offers visitors magnificent sea views and forest landscapes. Phaselis is one of the most popular tourist destinations in Antalya and is visited by thousands of tourists annually. Tourists can tour the ancient city, examine the historical ruins, and enjoy swimming on beautiful beaches. In conclusion, Phaselis Ancient City is an important tourist destination with its historical and natural beauty. Ruins belonging to the Lycian culture and natural landscapes provide visitors with an unforgettable experience.