Hi,
As discussed, a Thames walk covering Twickenham to Richmond, taking in one of the few Eel Pie Island open days, hence the limited dates. Pick all dates you could attend.
There is Hammerton's ferry, a small boat service we could use to cross the Thames.
https://www.eelpieislandartists.co.uk/about-the-islandWant to point out Pubs were convenient markers for planning via Google maps. The Wetherspoons in Twickenham might be a worthy lunch spot. Last time I was here, I went to Greggs, got some food and sat along the riverbank.
When & whereIt does get busy, recommend being there for 11am @ Eel pie Island.
Take regular trains to Waterloo East, walk to Waterloo and take a train to Teddington or Strawberry Hill.
Perhaps we meet at Waterloo around 10am?
I don't have visibility of planned engineering works this far ahead, so may change.