The account replied: "The place is called 'Paseo de la Costa' in Vicente Lopez. Its very close to a big supermarket named 'Carrefour', located at Avenida Libertador 215. You should cross the supermarket and turn right into a way that leads to the river. You will see the streetart, is huge. Good luck!👍"
I tried to find it in google streetview but can't find the wall. Any one has idea of it still exists and where it is exactly?