my father used to work for british rail , and recieved free travel passes for the family , valid to the border of spain. as a kid we used to have 2 foreign holidays every year , always travelling by train. used to be great fun sleeping on the trains .
Those Free Passes were called "Privelege Tickets" - "privs" for short. Best value in the world. British Railways (as was) used to operate the ferries to the Isle of Wight & The Channel Isles, so it was trains & boats for every holiday. My sister - now in Aussie - worked on the Railways too (at Paddington) & she travelled the length & breadth of Europe by train.
Iron - sorry, I meant Inverness. Alan Clark (son of Lord Clark) often used the Sleeper to travel up to Eriboll, his Scottish Estate. I'd love a bit of that. Sleeper to Scotland, wonderful.