Panoramic 360º view of Suspension Bridge 516arouca. The 516 Arouca bridge is the largest pedestrian suspension bridge in the world and is located in Arouca, in the Aveiro district, Portugal. With 516 meters in length, and an elevation of 175 meters, it connects the banks of the Paiva River. While crossing the bridge, you will have a breathtaking view over Garganta do Paiva and Cascata das Aguieiras, both geosites of the UNESCO Arouca Geopark territory.516 Arouca Bridge is located in Arouca, next to the famous Passadiços do Paiva.