Promajna, like most of Croatia, is generally a safe place for solo female travelers. Crime rates are relatively low, especially against tourists. However, just as with any travel, some precautions are necessary: it is always advisable to remain aware of your belongings, avoid secluded areas late at night and be cautious when dealing with strangers. In an emergency, the local authorities are generally helpful and responsive. Therefore, it offers a comfortable and secure environment for solo travel, just like many other parts of Croatia.