Photo: Soko Silberbach performing 'SWANLESS' with custom fog-horn built by Eyeshadow Soundsystem. Dark River Open Sky was an exhibition that took place on the Thames beach. Text by Iolo Walker: A cold wind scuttles across the lips of the river. Cold wind repeats as it scratches ‘you will miss me one day’. River shudders and wets its lips. Cold wind scuttles up the river. Cold wind weaves and arcs its way away from the river. A group of people have gathered in a nondescript shopping centre. They shut the door to keep the cold wind out.