Just as NORAD has a special santa tracker every Christmas Eve, the UK train reporting system in the UK has a special train scheduled in the system every year.
It leaves North Pole depot, London at 2345 and travels around every one of the 2582 railway stations in the UK, arriving back at North Pole at 0015.
This year, and I quote, it is scheduled as being hauled by 9 reindeers and with a sleigh and scheduled at 225mph (to go round the system in 30 minutes it would need to do 10x that speed). It is also noted as "Loads presents and coal here" [at North Pole depot].
It is the one train every year which always runs on time!!
A bit of fun.
North Pole is a real depot, near London Paddington, originally for Eurostar when it ran out of Waterloo, now used by Great Western.