An exhibition of photographs and maps of Bounds Green Brook. This partially covered tributary of Pymmes Brook, the River Lea and finally the River Thames, rises on the northern slopes of Muswell Hill and the eastern slopes of Finchley. Over the last year, Ben has sought out – and climbed into – subterranean culverts to explore and photograph a paradoxical landscape of spring water and sewage due to drainage misconnections. Alongside he has gathered local people to share knowledge and test water quality in cemeteries, allotments and under the North Circular.