http://www.london2012.com/games/venues/index.php

Some of the events will be held in Central London i.e. Hyde Park, Royal Artillery , Regents Park and The Horseguards Parade. The rest of the events to be held in London are fanned out to the suburbs because of proximity to the Olympic Village. The village will be turned over to the local public authorities for the public's benefit after the Olympics.

Public transport is fab over here but, still a daunting task for the Olympic Committee to ensure that the athletes get to their events on time because it is heaving during peak hours. Transport and access to the Games are of utmost concern for 2012 and I hope visitors to London would walk to venues. They'll get to see more of London that way as well.
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