I have a quick question about my train ticket. Sorry if it's a bit silly.
I'm travelling from London to Canterbury tomorrow and I booked my train ticket specifically so I could depart from Charing Cross. But my ticket says U1 to Canterbury Stations. I understand U1 means zone 1, which is where I'm getting my train from but I'm a bit confused. Does the U1 mean I can also use my train ticket as a tube ticket too?
I'm just wondering if I actually need to top up my Oyster card...
... and the ones that won't