October 2020 - this was my highlite whs on the Portugal trip. Guimareas is a wonderful, historic town with a very specific architecture. Many of the houses have tiled walls and characteristic wooden balconies. 
We parked next to the castle and toured through the city. Due to Covid, the town was probably not as packed as it is normally due to tourists combining it with Porto.The town has several sights, the medieval castle and the palacio ducal, which both have a very British character, the camara municipal with its big yard where children were playing, the Igreja e de Nossa Senhora da Consolação which stands on a roundabout but still is not loosing its charme, 
the Couro-zone where clothes were dyed and of course the main praca de São Tiago with the framework houses, the porticoes which lead you to further churches and squares. Somewhat like an ideal medieval town which you would build from Lego bricks. There are so many other things to visit but we had to find a laundry. 
In the evening hours we returned again, Guimareas turned into a Christmas market. Fairy lights on all the balconies painted the town into a cozy yellow. 
Just before closing we still had a Portwine in the wonderful Artdeco Milenial Cafe (very authentic). After this perfect sightseeing day, we fell asleep in our camper to continue to Braga next morning.