São Luis do Maranhão offers a rich authentic Brazilian experience, with its unique culture and UNESCO World Heritage status. However, like in many parts of Brazil, safety can be a cause for concern especially for solo female travelers. Petty crimes like pick-pocketing and purse snatching do occur, particularly in crowded tourist spots. It's advisable to stay vigilant, avoid displaying wealth, and stay in well-traveled areas. After dark, it's a good idea to rely on reputable taxis rather than walking. Always follow local guidance, it's wise to associate with locals or other travelers who understand the area well.