Darwin is generally a safe city for solo female travelers. It's a diverse and multicultural city with a laid-back vibe. Crime rates are comparable to other cities of the same size. During the day, it's perfectly safe to explore, just ensure to exercise usual precautions such as not showing off valuables and being aware of your surroundings. At night, it’s advised to avoid isolated areas and parks. Like any other places, it is always important to stay vigilant especially when travelling alone.