The Op Art has an extraordinary localization, literally on of the river. It is in the zone of the Lisbon Docks, but moved away from the confusion, underneath Da Ponte 25 de Abril. The space is a simple transparent cube with an excellent esplanade. It opens early to serve lunches, it receives the passerbys that come to drink coffee to the afternoon, and it is at night that the place transforms, acquires other tonalities and, mainly, other noises, with the latest trends of dance music and alternative environments. The musical programming is varied and guarantees to keep the party going till late in the morning.