Actual men's shirt and short swim sets – also called cabana sets - made their debut during the postwar period, when leisure was taken far more seriously, and more and more men could afford beach and cruise holidays.
El Morro, as it is popularly called, was first erected in 1590-1640, and La Punta, a much smaller fort, is of the same period; both were reconstructed after the evacuation of the city by the English in 1763, from which time also date the castles of Principe, Atares and the Cabana.
There's a breezy cabana, beach-themed butterfly chair and personal watercraft with a removable doll-sized life vest.