İztuzu Beach is a 4.5 km long beach near Dalyan, in the Ortaca district of the Province of Muğla in southwestern Turkey. The beach is a narrow spit of land, which forms a natural barrier between the fresh water delta of the Dalyan river and the Mediterranean. It is one of the main breeding grounds for loggerhead sea turtles (Caretta caretta) in the Mediterranean and is therefore often referred to as "Turtle Beach". The loggerhead turtle (Caretta caretta) is on the IUCN Red list of endangered animals. For this reason the beach has had a protected status since 1988 and is part of the Köyceğiz-Dalyan Special Environmental Protection Area.

The greatest threat to the survival of the loggerhead sea turtle is on these sandy beaches where its life begins. This has triggered an international conservation effort that began in the 1990s. The effort to protect loggerhead sea turtle eggs and to assure a safe breeding ground for this endangered species has made international headlines. This issue is one of the most critical items on Turkey's environmental agenda.