Valença exists because of a border. The fortress that dominates the town was built to watch over the Minho River and the Spanish on the other side, and that tension between two countries, separated by little more than a bridge, still defines everything that happens here.
The Fortress and what survived inside
The Fortress of Valença is one of the best-preserved in Portugal. Two walled enclosures connected by a bridge, with bastions offering wide views over the Minho and Tui, the Galician city across the river. Unlike many monuments left as empty shells, this fortress still has people living inside it, houses, shops, restaurants. It's also true that many of those shops sell towels and linens at market prices, which creates a curious atmosphere: a 17th-century stronghold turned open-air shopping centre. Accept the contradiction and take your time wandering the cobbled lanes.
Beyond the walls
Most visitors never leave the fortress, and that's a mistake. The riverside area along the Minho deserves a walk, especially in the late afternoon when the light drops over the river. The International Bridge connecting Valença to Tui is walkable, it takes less than ten minutes and lets you have dinner in Spain and sleep in Portugal, or the other way around. This ease of crossing the border is part of daily life here and worth experiencing firsthand.
What to eat
We're in Minho, so vinho verde is mandatory and the food tends toward generous portions. Look for lamprey in season (January to April), fried shad, or a good bacalhau. Restaurants inside the fortress serve decent meals, but the best ones are generally outside the walls, where prices are also more honest. Fatum, already listed on boa.pt, pairs fado music with dinner, a combination that works better than it sounds.
How long to stay
Valença works well as a half-day stop if you're driving through Minho, but it deserves an overnight if you want to combine it with Tui and explore at a slower pace. Sundays bring more foot traffic to the fortress because of the shopping, which can be good or bad depending on your crowd tolerance. During the week, especially outside summer, you'll have the ramparts nearly to yourself.