Saint John is generally considered a safe destination for solo female travelers. As in any city, it's important to be aware of your surroundings and take basic safety precautions. However, crime rates are relatively low, and Canadians are known for being friendly and helpful. The city is relatively easy to navigate, and there is a good local transportation system. Furthermore, public spaces like parks, restaurants, and shops are well-lit and often busy. Always remember though that no city is without its risks, so always stay vigilant and take necessary precautions.