Mar del Plata is generally safe for solo female travelers, with most locals being friendly and welcoming. However, like any place, it has areas that are safer than others. It is important to keep an eye on personal belongings at all times, particularly on the beach and in crowded areas. In city centers, while safe, it is advised to avoid isolated areas after dark. Always use licensed taxis or trusted ride-sharing apps for transportation. Remember to use your common sense and trust your instincts. Generally, by being vigilant and taking standard precautionary measures, you should have a safe trip.