Check out our Strava map above showing cycling activity during the night of the Dunwich Dynamo, 20-21 July 2013, when a thousand or so people cycled from London to the Norfolk coast.
A snake of light shows the riders gliding through the night, while the bright lights appearing all over the UK and Europe are the rest of us getting up the next morning.
Safer Urban Driving - lorry drivers are getting on-bike experience to improve safety
Met Police gives space for cyclists
Mayor and TfL must put walking and cycling first in design and planning