Nice place. I visited in 2020 when one of the subjects for the Birthday Challenge was to find a flight of five or more locks. Unfortunately no bonus points were scored for a boat in each lock, all the pictures of Caen Hill seem to be fairly short on watercraft.
I came across this which explains a wee bit about them:
Great memories of this place. As a lad I lived in Rowde, walking distance from the flight. I learnt to fish there when it was all in disrepair before they renovated the flight and reopened it