Restaurant Vinum at the Graham Port factory offers a enchanting view of the majestic Douro River and the historic city of Porto across the water.

The historic building it's housed in adds extra charm to the experience. This is an absolute must-see location, especially if you're visiting the Graham Port factory.

The restaurant is spacious with multiple sections, both with and without a view. You'll notice many large round tables, likely intended for groups taking the Port factory tour.

As for the food, the menu mainly features fish and meat dishes, with prices starting at 22 euros. There's only one vegan option: rice with vegetables.

While the food (8.0) is good, it may lack that 'wow' factor. The service is friendly but not exceptionally warm. The staff sometimes appear more like security personnel with their earpieces.

While there may be better dining options in Porto in terms of food, the unique setting and breathtaking view of the city and the Douro River make this restaurant an unforgettable experience. It's the perfect place to savor the region's stunning natural beauty and is a must-see for anyone exploring the Douro Valley.