Lisbon is known as the “City of White Light” due to the bright sunshine reflected off of the numerous cobblestone sidewalks and plazas. In fact, Lisbon’s Terreiro do Paco, situated right over the Tejo River is the largest plaza in all of Europe. But for all its “white space,” the Portuguese capital also boasts a good amount of green space and, of course, beautiful beaches. But the trick is to find those spots where the …