Hello, Elle!
Yes, my son says he doubts if they would return to Venice.
They liked it, but it is not Florida!
Now, "Venice in Peril"!
It was the name of Rondo Veneziano's CD, which I have here and it is really good.
But, there is a British charity called "Venice in Peril", too.
It raises funds to help restore Venetian monuments, buildings, and works of art, damaged by the waters and pollution etc.
I suspect there may be a link, but have not delved into it, yet.
Yes, your book is the updated version and it should cover everything you are curious about.
I have finished the puzzle.
The German river is new to me.
And much scratching of my head in trying to parse 17a!
Got it, though!