Vandoma Flea Market is a flea market in Porto that started spontaneously near the cathedral as a place for students to sell their stuff after 1984, and then became a regular weekly activity that takes place every Saturday morning in the Fontanhas area along the riverside, where you can find On all kinds of second hand items from clothes, vinyls, books, furniture and more, a visit to the market is a good way to see the true spirit of the city and its locals.