Turn right at Campillo Street and walk down three blocks to Obregon Street. At this point you are ready to browse and explore the area. If you are planning on visiting Nogales, Mexico you will need to come prepared with identification. U.S. citizens should bring a valid passport. The passport is the most convenient and it serves two purposes.
Visitors can use the passport for photo identification and helps it in using cashiers checks.
A birth certificate is also acceptable, as long as it is a certified copy. You may use a voter registration certificate or military identification. A driver's license or baptismal certificate is not proof of citizenship. There can be difficulties when driving across the border, which you need to be aware of before you cross. First of all, most U.S. auto insurance companies do not insure policyholders when driving into Mexico.