Yueyang is generally considered safe for solo female travelers. Like many places in China, the level of crime is relatively low. However, it's still recommended to exercise basic caution. Avoid traveling alone at night in unlit and less crowded areas. Also, be cautious with your belongings to avoid petty theft. In general, it's culturally respectful to dress modestly. Understanding a few basic cultural practices and learning a few phrases in Mandarin can also greatly enhance your travel experience.