The only pic I can find shows water, a fledgling jetty, bamboo and what could be either Gunnera or Giant Hogweed further down the bank. A better picture would be useful.

Gunnera would be my guess, too.

It would help if you attached a photo to your Q I looked and could not work out what was what!

Are you talking about the sideways one labelled "weed?" where the background is in focus and the plant with small reddish- orange flowers that's in front isn't?
I believe it to be figwort, though it's a bit hard to tell as it's out of focus and sideways and figwort doesn't usually get to be more than about 4 feet tall.

Thanks Beattie, thats the one, On my computer it was not sideways ,I do not understand why that happened.