I think this photo could be of a maypole construction, although I cannot be certain. A young boy has shinnied up the pole to the ring, other children are standing under him and observing whatever it is he is doing. Being as the pole is in a clearing and has that ring around it, my guess is either a construction of the maypole or a disentangling of ribbons after the dance.
Or a circus tent. Now that’s a whole other direction….