Authorities in Portugal have released footage of 516 Arouca, an adrenaline raising suspended pedestrian bridge in Arouca, just outside of Porto.

The facility will open to the public this October and is set to become the latest must see for those visiting the north of Portugal.

Suspended 175 metres above Rio Paiva and stretching for 516 metres, the bridge is designed with a transparent base which mimics the feeling of walking through the air with the River Paiva right beneath.

The giant suspension bridge is supported by two V-shaped concrete towers with a unique design combining elements of a pure Tibet-style footbridge with no towers and a sagging deck with a more conventional tower supported span with a flat deck.

The bridge connects the escarpment of the Aguieiras Waterfall and the area of the Paiva Gorge, two of the 41 geosites of the Arouca Geopark.

Take a look above for more information.