...because that seawall is definitely one of the coolest, most unique things about Fort Jefferson. One supposes that if there's going to be a seawall holding in a moat, it might as well be an accessible walkway, because folks will need to get out there to maintain that seawall...but strolling along this wide, pleasant walkway around such a lovely fort, amidst the effortlessly gorgeous Gulf of Mexico, it sure seems as if the walkway was placed here solely for the pleasure of visitors.