Our plans for our London trip includes spending a day at the Spitalfields Market/Brick Lane/Columbia Rd area returning to central London later in the day (to Hamley's - the carrot for the kids!). We intend to do this on Sunday 13th April which happens to be the London Marathon day - I think- and we are wondering how the marathon affects the city. Will transport (tube particularly) be a nightmare? We will need to travel from Hammersmith station to there. Any suggestions/tips or is it something we won't even notice? (She says hopefully...) Thanks.