© All Rights Reserved Avenida de Dom Carlos I at the mouth of the river Douro in Porto. This area is called Foz, which means river mouth and is a popular spot for promenading.Related images Dom Pedro VI statue - Avenida dos Aliados - Porto Balcony / conservatory - 1872 House - Porto River Douro - Porto The walk down to the bridge - Porto Rua Santa Catarina - Porto Rua de Miguel Bombarda paving