In 1996, as a cultural and ecological alternative to the water carnival and collecting student initiatives from to the Arts Department of the University of Nariño, establishing the proposed "Rainbow in the Asphalt". Through art and using the imagination, with the color of chalk on the gray concrete inviting to recover urban space and regain the sense of carnival and celebration. So the pre-carnival in general, has changed, which seek to keep the festive spirit through art, creating a new attitude to the festival and the city.