The Ponte de Espinho (Espinho Bridge) assures the connection between Bustelo and Boim over the river Sousa. Unlike the Ponte de Vilela (the Bridge of Vilela), it shouldn't be prior to the mid-18th century, once it is not mentioned in the Parochial Memories of 1758.
GPS coordinates: 41° 14' 36.53" N / 8° 16' 24.75" O
Location: Penafiel