As often happens today, the green intervention requested to be realized on a concrete slab, due to an underground parking, thus, one of the design challenges was to successfully include the ventilation grids within such a small space. The idea was to make grids active part of the project, incorporating them in the secondary paths design. The bright colours for the plaster, and the wise use of plants, contributing to look away from the grids, and direct it instead to specially created views. The long and high wall becomes an opportunity to provide more green, both through climbing plants, and to a series of planters on the top. The project has also wanted to break the wall continuity, through the repetition of copper pilasters. The different levels are solved by embracing rock outcrops in new retaining walls, plastered with bright colours that well contrast with vegetation. The choice fell on typical Mediterranean vegetation. The scene continues at dusk, when the lights skillfully alternated, combine visual needs with spectacular light effects.