The image shows a group of young people wearing green vests and helmets, standing on a sidewalk with their bicycles. They are gathered around a large group of spheres, which are placed on the ground in front of them. The spheres are of different sizes and shapes, and they appear to be made of concrete or stone. In the background, there are trees and a building with a red brick facade. The sky is overcast and the overall mood of the image is peaceful and serene.