What are the fees for Oyster cards for 16+ Non-resident & 11-15 Non-resident?
Go to www.tfl.gov.uk for transport info in London.
Swan - I saw that there is a 5 pound fee, but I was wondering if youth recieived a fare discount?
The Oyster card at the Heathrow airport included a 3.00 GBP "refundable" fee. We put 10 or 20 GBP's on it for riding the underground into Paddington Station. It is also good for the busses. When you return to the airport, go to the ticket window and you will receive your 3.00 GBP back. It is a great way to get into and out of the tube stations quickly by swiping the card as you go into the station and upon exiting.
Joel - This link has the discount details for the Oyster Photocards for those under 18. Scroll down each page for the Non-resident information.
http://www.tfl.gov.uk/tickets/faresandtickets/2957.aspx
Adult visitors would just need to get the regular Oyster card that Miss B described as the adult Oyster Photocard is only for special conditions.