Cascavel generally maintains a moderate level of safety. As a solo female traveler, it's crucial to be alert and cautious at all times, especially during the night. Common street crimes like pickpocketing can occur in busy areas, so it is recommended to keep your possessions close and avoid showcasing expensive items. It's also advisable to stay in well-populated areas and opt for official taxis or trusted ride services over public transportation. Always inform someone about your whereabouts, and respect local customs and traditions.