Salto de Piedras you can reach this cute waterfall in approx. 3 hours from Santa Fé. Ask in the village for the beginning and then just follow the road till you see a small house with a green wall. There is also a sign that says "Alto de Piedras". Don't go there but take the next path just a few steps further down where there is a sign which says "cuida la fauna" (or something similar). You can also take a cab to reach this point. From there it's only a couple of minutes till you reach the waterfall.

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