London mayor Boris Johnson has secured the signatures of leisure and tourism businesses as part of a new charter, which aims to ensure fair prices for visitors to the 2012 Games.

The O2 Arena, the Tower of London, Kensington Palace and Hampton Court are among the signatories of the new London Visitor Charter - launched by London and Partners. A number of individual pubs, bars and restaurants have also signed up to the charter, as well as the New West End Company, Eurostar and minicab company Addison Lee.

Johnson said: "The London Visitor Charter demonstrates our determination to offer all our visitors both a great deal as well as a great time. "I call on all businesses in the capital's huge leisure sector to get on board and be part of this drive to tell our guests that London offers great value for money."

Image: The O2 Arena is one of the signatories – zakgollop