Caminamos como entrenamiento para el Camino de Santiago .

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Details · From the poster
Entrenamiento para el Camino de Santiago.
A guess
An afternoon: an energetic, outdoors-minded mood where conversation starts on the move. Probably people who like to be active, usually easy to join. In Buenos Aires people dine late and go out after 23:00.
A guess from the kind of event, the hour and the city, not from the organizer.