Port of London Authority workers have hauled nearly 70 shopping trollies out of the Thames in south London.
Crew of the Diftwood III boat, who usually clear trees and driftwood, collected the trollies from the shore of the river at Thamesmead.
PLA marine manager afloat Michael Russell said:
The PLA works very hard to clear rubbish from the river but this incredible find in one pocket of the tidal Thames shows what a mammoth task it is.
The trollies will now be taken for recycling.