The gravitational direction is neither ordered nor hierarchical, but the continuum of the concrete surface ensures effective load transfer. Massive but floating, opaque but pierced, a dialogue emerges with the surface of the water in relation to the horizon, the line of gravity between the sky and the land. The difficulty in carrying out the work lay in the need to divide the complex surface into sections of shuttering that could be combined, manipulated, reused, and reassembled symmetrically twenty times. The plan for the shuttering was geometrically and constructively regulated using a digital model available both to our office and to the builder, the building site and the geometric tool being central to the project.