Children 5-15 half fare. Children under 5 free. Your travel agent will give you a voucher which you will exchange for your pass at any major underground or transport office, including Heathrow airport. Not valid from Heathrow Airport. Travelcard Many travelers save money by buying cheaper alternatives to Travelcards once they are in London.
Families also get a discount.
Not valid on the Heathrow Express, Eurostar, or some busy weekday morning commuter trains. Allows unlimited bus travel in England, Scotland and Wales on the extensive National Express bus service. While many small towns and rural areas of Britain are not served by trains, travelers can go anywhere just about any time by coach. Coach travel is the cheap way to explore Britain. While some argue you get a closer look at Great Britain through a bus rather than a train window, I'd bus Britain only to save money and to fill gaps in the train system.