Samir K.
Yelp
So I found this place thanks to Anthony Bourdain (RIP)'s Porto episode. I know there are other wineries, and to be honest I think they were a little surprised my wife and I showed up here as a group that's not part of a tour. Anyway, walk in and someone will help you- and most of the workers speak English as well as 2-3 other languages. It's about 12 euros for the cheapest tasting flight, and the cost goes up from there based on how expensive your tastes are. There's a video that briefly goes over the winery, a tour through the barrels, and a mini-museum which is basically just racks and racks of old-ass Port, some dating back to the 1800s. They also have one bottle that dates back to the 1700s that's kept separate, pretty cool.
After the tour, you go into the beautiful tasting room. It wasn't crowded at all when my wife and I went, and they set the whole thing up for you so it looks pretty. We bought the cheese plate too, which was tasty.
As for the port itself, you need to be able to tolerate strong alcohol and sweet combinations to be able to drink it, especially the older ones. The white ports are quite sweet, and the old tawnys are very strong. After a few, you understand why port is an after-dinner drink, because I definitely wanted a nap.
All in all, a worthy stop in Porto.