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. Posted by Travel in Portugal on Sat, 21/12/2013 - 21:18 × Related images Pergola da Foz Rua de Santa Catarina - Porto Dilapidated building on Rua dos Bragas River Douro in Porto at Night São Pedro de Miragaia - Porto Porto Town Hall