The promenade is considered as a line at the edge of the city, a line that borders the city, a line you walk at the edge of the city. The line is a five foot wide strip of white pavement, the size of the existent grid, marked in the center with an 8" wide glass strip. This line is a pedestrian equivalent of the white stripe that instructs automobile traffic in roadways. For the most part the line continues down the middle of the promenade, sometimes rising up out of the pavement to become a wall, or a bench, or a solid mass into which tables and seats are carved, or a path incised between two walls. These transformations mark particular places along the length of the 2.5 mile promenade, moments when views of the water appear, or the city is sliced by a street, or a cafe spills out. Sometimes the line becomes bollards to protect  the promenade from cars. Chameleon like, the line transforms to take on the characteristics of the site as it slides along the length of the water’s edge of the city. The glass strip is lit with fiber optic cable at night, a ribbon of light reflecting the bay adjacent, marking the edge of land and water.