A city known as the 'Venice of Portugal' due to its network of canals navigated by traditional colorful boats called 'moliceiros' — once used for collecting seaweed, today a tourist attraction. The city center features Art Nouveau architecture with azulejo facades, a fresh fish market, and the famous 'ovos moles' (egg yolk sweets in wafer shells). Nearby is Costa Nova — a village known for its striped, colorful fishermen's houses. Train from Porto takes 75 minutes.