Carnaval is a popular festival celebrating freedom, satire and imagination just before the quiet of Lent. In February, Barcelona dresses up, transforming its streets into a stage where anything goes: parades of floats, outlandish masks, infectious music and the simple joy of taking part. Squares fill with confetti and children’s laughter, while King Carnestoltes marks the opening of a week when the city sets aside the usual rules. There is no need for a costume. Just embrace the playful spirit and join in.