Walk the boundaries and zig-zag through London SE1 with this audio postcard. Bands are hidden round corners and under bridges, the echoing Turbine Hall swallows peoples voices. Lower Marsh market lies hidden from the route more commonly walked by visitors and gentle waves hit the boats tied up to this relatively peaceful stretch of the Thames, by Vauxhall bridge. Elephant and Castle roundabout and shopping centre, a dull sounding building and collection of shops, livened with the voices of numerous nationalities. Railway tracks surround SE1 and so do the railway arches and tunnels where time seems to stand still as trains creep overhead. We leave on a side street and the sound of building works from the Shard, a building that will change the skyline and the future sound of the area.