March yourself to Naval Station Rota, explore the site and try to imagine what being a member of the armed forces is like.
You'll be spoiled for sightseeing choice when staying in El Puerto de Santa Maria. Naval Station Rota is a great place to kick off here, but there are numerous other worthy attractions to check out. Plaza de Espana, Valdelagrana Beach, and Playa de la Costilla are close to the military installation and and will cap off your day nicely.