Get in touch with your spiritual side and mingle with worshippers at Serra do Pilar Monastery. Quietly reflect outside for a while or ask if you are allowed to join the next service.
This Santa Marinha house of prayer is an interesting spot to begin your day of sightseeing. There's lots to see nearby, like Sandeman Cellars, Casa da Musica and Porto Cathedral. Wander around at your leisure at Serra do Pilar Monastery before heading to these other fine sights.