Getting Around London Oyster?

[crisgal]

Does anyone know if you can use a visitor oyster card on the train from euston to watford junction?
I've looked at the website but it talks about zones etc and I'm so confused! Also it says the children need a photo card? Can't I just buy them their own oyster?

[Canary42]

Watford junction seems to be just within the pay as you go zone (The dotted line on the map at this link http://www.nationalrail.co.uk/static/documents/content/London_Rail_Tube_map.pdf)

[Canary42]

Sorry, the link doesn't seem to be working for some reason.
I'll try again

http://www.nationalrail.co.uk/static/documents/content/London_Rail_Tube_map.pdf

[dzug2]

Children's Oysters have to be preordered several weeks in advance and cost £10. You can't buy them on the spot.

For a short term visit you can buy them child travelcards instead

From Watford Junction that would be for zones-9 plus Watford Junction