First trial of a new sports concept at Antonis Tritsis Park, Athens. The challenge includes running over a route of about 5km; the remaining details will be revealed on the day of the event. Open to people from road running, trail running and CrossFit, and to anyone who loves movement. The organization is also looking for about 10 volunteers. There is no prize money or pay for athletes or volunteers. The exact meeting point and arrival instructions will be sent to confirmed participants. Athletes and volunteers declare their interest through the participation form; submitting the form is an expression of interest.