Oh! Looks like teams start on the north side and have to work their way UP instead of down the wire, starting on the Villaseca side and working their way south to the Artilleria side. What suggests this to me: the clue box with the Route Info is facing the wires, not the Ascensor Artilleria, where teams would come from if they came from the South.
So we have teams taking the Ascensor Villaseca up the north hill, a Roadblock with one team member crossing south to the Artilleria side with the partner miraculously (?) appearing across the valley, and ending with teams getting a Route Info and very likely heading down the path to the touristy Paseo 21 de Mayo and the Ascensor Artilleria to catch a taxi or whatever.