Great Northern, the train operator run by Govia Thameslink Railway (GTR), took around two hundred schoolchildren from Hertfordshire to see the Christmas panto Cinderella.
Greater Anglia will be carrying out three major engineering projects over the festive period and advises passengers to check their journey planner before travelling.
To give people a chance to blow away the Christmas blues, the Wensleydale Railway is running steam and diesel Mince Pie Special trains.