Porto: Part Two

Beach Day! A few days into our trip to Porto, we decided to venture outside the confines of the city and see some of the coast that lines the Atlantic ocean. Lucky for us, the tour bus tickets we bought picked us up right outside of our hotel and dropped us off near the beach.
Having no real plan for the day, we wandered around a bit, taking in some of the fresh air and sunshine. Near one of the inlets, there's an old stone fort that was used for some sort of port protection, judging by t...