The Thames at Crossness yesterday - I walked up from Woolwich to within sight of the QEII bridge - and in fact to within 2 miles of the end of the Thames Path, but I'd been out in the sun for three hours, which was enough. There's little shade on the river.
The arch on the right in this picture is the Barking Creek Flood Barrier. The cross bar drops down and blocks the mouth of the creek at high tides. There's seaweed on this stretch of the Thames, although (as you can see) it's not really that wide yet.
I'll be returning to Erith for the last bit of the Thames Path and then winding down the rivers Darent and Cray as part of the London Loop, which my aunt and I picked up again starting today.
No good pictures though - some nice horses and lakes, and the sort of cornfields that make you feel like you're in a Cadbury's flake advert - but also lots of brambles and golf courses, and a cancelled train coming home.