Four diamond-shaped bastions connect the protective walls, which are composed of coquina, a porous yet hardy limestone studded with seashell fragments. The fortress remains about 95 percent original, a testament to its rare construction and preservation efforts by the area historical society and the National Park Service. “I like to think of every brick as having its own story,” says park guide Marty Enwright, who dresses in a Colonial-style outfit of her own making several days a week. “We’ve got [nearly 350] years here, and in those years, there’s something that someone is interested in that happened at this fortress.”
