Leonie took me for a walk out of the city centre along the canal to visit Sandford Mill, one of the Ideas Festival locations. It was a walk of bridges, crossing and re-crossing waterways, waterways crossing and re-crossing eachother.
This perilous 'path' is alongside the bridge. What is it for?
There had been a storm overnight, and where two rivers met, the high water merged in clouds of silt.