Predeal, is generally a safe place for solo female travelers. Given its status as a well-loved tourism spot, the local authorities are quite meticulous in maintaining safety. Violent crime is very rare and generally, people are friendly. However, as is advisable anywhere, it's important to be aware of your surroundings and adopt the usual safety precautions such as avoiding remote areas at night, not flaunting expensive items, and choosing safe forms of transportation.