Datca is a laid-back, tranquil town on the Mediterranean coast of Turkey. While it's never 100% safe anywhere, women generally report feeling safe in Datca, both during the day and at night. The locals are friendly and used to tourists. That being said, it's always crucial to maintain sensible precautions such as avoiding poorly-lit areas late at night, keeping an eye on your belongings, and letting someone know your whereabouts.