Bydgoszcz, Poland. 1st May, 2017. People are seen taking part in a specially oraganized critical mass cycling event. In Poland the first of May is an official day off and is also called labour day. In cities activities are organized centered around health and active lifestyle. Credit: Jaap Arriens/Alamy Live News

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Photo credit: © Jaap Arriens / Alamy / Afripics
License: Licensed
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Keywords: 1, active, activity, atb, bicycle, biking, critical, cycling, fit, fitness, goggles, group, helmet, mass, move, poland, professional, sport