If you’re eager for more adventure, keep on driving to Coimbra, 50 miles from Penalva Do Castelo. There are plenty more fascinating things to see and do here, including Portugal dos Pequenitos and Old Cathedral of Coimbra. Still in the mood for a bit of sightseeing? Punch Porto into your GPS. This appealing destination is also home to a few great sights like Casa da Musica and Porto Cathedral, and it’s only 60 miles away.