Dilek Peninsula-Büyük Menderes Delta National Park, established on May 19, 1966, is a national park in western Turkey. It contains within its borders the entirety of the Dilek Peninsula as well as the large delta of the Büyük Menderes River. The park is located in the Kuşadası district of Aydın Province — part of Turkey's Aegean Region. Directly west of the national park is the small coastal town of Güzelçamlı, where several shuttle buses and ferries operate to and from the district's center of Kuşadası, approximately 30 km (19 mi) from the park.

Kuşadası is a municipality and district of Aydın Province, Turkey. Its area is 265 km2, and its population is 130,835 (2022). It is a large resort town on the Aegean coast. Kuşadası is 95 km (59 mi) south of İzmir, and about 60 km (37 mi) west of Aydın. The municipality's primary industry is tourism. The mayor of the district is Ömer Günel.