A circular portal-mirror, 3 meters in diameter, suspended among the existing vegetation, above a practically immobile water mirror. Crossing this plane, which reflects its surroundings, is a 5 meter long line of light. The suspended, crystallized mirror, whose image is only changing depending on the observer's point of view, while the liquid mirror is constantly misshapen at the whim of the river's current. Water, glass and light, three elements whose geometries and relative positions reverberate - to oneself and to the surroundings - infinitely. The light is in sync with an artificial soundscape, added to the natural sound of the place: a track composed by the artist Ricardo Nogueira Fernandes, entitled 'Circle'.