BTF. 1950s?

[CALF28]

Hello All,
I'm trying to find the title of a British Transport Film for a friend of mine. Her mother is in it. Here's what she remembers. 1956/7 maybe. Two girls travel from Harwich to the Hook of Holland, one of them plays a guitar in the cabin. They also go for a boat ride on the Rhine. I've got a lot of these BTFs but it doesn't ring any bells with me which makes me think it might be later than the 1950s. This is just a guess though. Any help would be much appreciated.

[Simon Coward]

Could it be "The Travel Game" (1958)? Some detail and pics here.

Edit: The above doesn't mention Harwich, but another page says this about that film: "‘The Travel Game’ (1958) featuring the Harwich-Hook of Holland rail and ship route to the continent".

[CALF28]

Thanks for that info Simon, I'll see if I can track down a copy,