Arouca 516 is one of the world's longest pedestrian suspension bridges, located in the municipality of Arouca, in the North Region and the Aveiro District of Portugal.

[2] Its name is a reference to its extension in meters and the municipality where it is located.

[2] It opened on 29 April 2021 to residents of the municipality and on 2 May to the general public, with prior purchase of tickets online.

[5] Access to the bridge is possible either from Canelas or Alvarenga and a guide always accompanies visitor groups.

[7] The bridge was designed by the Portuguese research institution Itecons[8] and constructed by Conduril Engenharia, S.A.,[2] at a cost of approximately €2.3 million.