Shallow water, do not dive

A canal without water is as sad as a pub without beer.

It looks as though there is work being done on the sluices, they are just beyond the orange bouys in this shot, so they are fully open. This means that the river level drops and it is too low to fill this channel as far as the lock. I couldn't see any signs saying how long the work would last but this chops a fair bit of the Medway off from the rest.