This is a whole day excursion very different from the rest in the area. The site is located in the middle steppe just halfway between El Calafate and El Chaltén.
Throughout the walk you can see a large number of petrified logs that lie on the surface, some 70 million years old, some with a diameter of 1.20 m. These remains are testimony to ancient times where the weather was very different from today and allowed the support of a large and abundant flora. Occasionally fossil remains of different types of dinosaurs are discovered.