Looking forward to summer? If so, Saturday 21 June 2014 is the longest day of the year, and since time immemorial people of all faiths and none have marked the occasion of the summer solstice by rising to greet the dawn. London cyclists do this in their own special way, by riding through the night from Greenwich and London Bridge to Primrose Hill, following a tradition established by the late Barry Mason.
Following the sunrise, some participants will head off for a communal breakfast, either at Lock 7 on the Regent's Canal, or in a Southwark cafe.
Midsummer Madness is brought to you by the Dog & Bell Crew: an informal collective of social cyclists based in southeast London. The leader is science journalist and sustainable transport activist Francis Sedgemore, and the ride is organised under the auspices of the London Cycling Campaign.
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