Right. Like many people I cycle from south of the river up to Baker Street/ Marylebone. I have been looking into it and here's what I think - We'll be able to get north through the Hyde Park bike lane, either from Hyde Park Corner or the south carriage drive on most days. During the triathlon, all this will be closed, but cyclists will still have access to Whitehall. So we can go through Trafalgar square and to points North from there. Have I got it right, or have I got lost somewhere in the entrails of getaheadofthegames dot com?