Pärnu (Estonian pronunciation: [ˈpærˑnu]; German:Pernau, Latvian:Pērnava) is the fourth-largest city in Estonia. Located in southwestern Estonia on the coast of Pärnu Bay, an inlet of the Gulf of Livonia in the Baltic Sea. It is a popular summer holiday resort with many hotels, restaurants, and large beaches. The Pärnu River flows through the city and drains into the Gulf of Riga. The city is served by Pärnu Airport.