Ngorongoro is relatively safe for solo female travelers. While locals tend to be friendly and the Ngorongoro Conservation Area is generally secure, it's still important to take standard traveling precautions. These include avoiding remote areas after dark, keeping valuables hidden, being aware of your surroundings, and exercising caution when interacting with strangers. As with any travel destination, it's recommended to organize any safari or tour excursions with reputable tour operators.