San Agustin, offers a generally safe environment for solo female travelers. The local people are friendly and the city is relatively small, which makes it easier to navigate. However, it's not completely free from petty crime. Therefore, it's advisable to stay cautious, especially during the night, avoid secluded areas, and not to flaunt expensive belongings in public. Always use reliable transportation and stay in safe accommodations. Despite these precautions, the city's historic sites and breathtaking landscapes make it a worthwhile destination.