The Ribeira da Granja Observatory Centre is located by the riverside and was built so that people could see the feathered biodiversity that exists around the Douro river (birds, we mean). To find the observatory, look out for the sign with avian silhouettes on it. Behind it, you’ll find giant binoculars and a panel describing the different species. The make like an ornithologist and spot grey herons, great cormorants or ruddy turnstones. It’ll make you want fish for dinner.
If you’re on a budget or just believe that the best things in life – great parks, stunning views, art and culture, and… erm… knitting – are free, follow our guide to the best free stuff to do in town. Also, check out our list of great cheap places to eat