Explore hiking trails around Póvoa de Santo Adrião e Olival Basto, Lisboa. The best hike near Póvoa de Santo Adrião e Olival Basto is Pelourinho de Sintra, a 2.3 mile oneway in Sintra-Cascais Natural Park. Póvoa de Santo Adrião e Olival Basto has population 18806.0.