Nothing beats being beside the sea. Gather the troops, organize a picnic and get some fresh air at Granja Beach.
You're spoiled for sightseeing choice when in Praia Da Granja. Granja Beach is a good place to kick off here, but there are loads of other worthy places to consider. Esmoriz Beach, Casino Espinho, and Lavadores Beach are near the stretch of coastline and and will cap off your day nicely.