Get acquainted with the rich history of Omoa on a day trip from San Pedro Sula. Learn about the history of the San Fernando de Omoa Fortress, which dates back to the time of colonization. Get insight into the history of Omoa on a guided tour of the fortress. The Fortress of San Fernando is a colonial-era Spanish fortress in Omoa, Honduras. Built between 1756 and 1775, the fortress guarded Spanish interests in the-then Captaincy General of Guatemala before being seized by the Honduran government in 1821.