Explore hiking trails around São Martinho das Moitas e Covas do Rio, Viseu. The best hike near São Martinho das Moitas e Covas do Rio is Episcopal Palace of Oporto, a 15.6 mile oneway in Historic Centre of Oporto, Luiz I Bridge and Monastery of Serra do Pilar. São Martinho das Moitas e Covas do Rio has population 258.0.