Aggtelek is generally a safe place for solo female travelers. It's known for its natural beauty and warm locals. However, it's always important to exercise personal safety precautions, such as not wandering into isolated areas alone, especially at night, and staying aware of your surroundings. It's always advisable to know emergency numbers and the location of the nearest embassy. It's focus is primarily on natural tourism, so it's not as crowded as big cities but the tourists are generally safe here.