Located within Gulf Islands National Seashore, Fort Pickens is a historic military fort built in the 19th century. The fort played a crucial role during the Civil War and offers guided tours that delve into its history and architectural significance. Visitors can explore the fort’s massive walls, historic cannons, and underground tunnels. The surrounding area includes beautiful beaches and nature trails, providing opportunities for hiking and picnicking. The fort’s location also makes it an excellent spot for watching dolphins and enjoying the stunning views of the Gulf.