© 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 Bolsa Palace from Praca Infante Dom Henrique Rua de Miguel Bombarda paving Ornate Facade - Porto Porto Bridge View Fountain in Jardim do Passeio Alegre - Foz Downtown - Old Porto