River traffic

Sadly the "Royal Iris" is still rusting away in Charlton. Went for a 10k run (my first since July) through Charlton and over the northern edge of Woolwich Common to Woolwich and then back along the riverside. Surprised to see the sand dredger (a Tarmac-owned vessel, "City of London") sail past on the high tide - didn't think anyone would be working on the river on Boxing Day, much less unloading sand or aggregate.