Ключевые слова: affection, beautiful, boyfriend, bridge, city, closeup, connection, couple, cultural, culture, dating, declaration, douro, eternity, girlfriend, happiness, happy, heart, holding company, icon, inscribed, lifestyle, lock, love locks, lovers, man, marriage, outdoors, padlock, padlocks, park, partnership, porto, protection, relationship, river, romance, romantic, security, sees it, street, sweethearts, symbol, together, togetherness, tradition, valentines, valentines day, young, youth,