Escambia County ordinances for Pensacola Beach...
With the exception of the alcohol-free zone on Pensacola Beach established pursuant to section 6-3 of the Escambia County Code of Ordinances, nothing in this section shall be construed to prohibit any person from legally possessing, consuming or selling an alcoholic beverage on sandy beach areas upland of the Gulf of Mexico, Santa Rosa Sound, or other navigable waterways.
The "alcohol free zone" is about 1.5 acres of beach adjacent to the pier.
Gulf Islands National Seashore (Fort Pickens, etc.) Rules and Regulations
Drink responsibly and follow all state laws on alcohol consumption.