This is the big tour, in the Chaltén region, for those who want to escape the mad crowds, such those found at Laguna Torre or at the various Fitzroy campings and viewpoints. I did it clockwise, although I believe that the rule is to do it the other way. Let me point out two disadvantages of my choice, the second one being (at least for me) somewhat more serious than the first one:
A) the steep end somewhat slippery stretch from Paso Huemul to lago Viedma is tackled while descending;
B) the tirolesa at Laguna Toro has the rope anchored on the side of Cerro Huemul. If you approach it from that side, you are able to drag the wheel to you also if it is waiting on the other side. The converse is not true: for this reason I lost one day waiting at Laguna Toro. Lost so to say, because in any case the wind would have been too strong in the surroundings of Paso del Viento to have a comfortable walk. Of course the name of this pass has been set in a proper way.
The track features minor additions to the basic loop, which may of course be skipped, but which are very worthy:
1) a little summit above Paso del Viento, in direction Cerro Azara. Due to the bad weather, I did not insist in looking for higher viewpoints, let alone to try, on the other side, to go somewhere on Cerro Huemul;
2) panoramic detours on the rock nose close to Paso Huemul, dominating the front of the Viedma glacier;
3) panoramic detours on the saddle coming before the descent to Estancia Rio Tunel;
4) a final climb to the Lomo del Pliegue Tumbado. I had already been there the day before undertaking the present tour, but when I reached the path to the Lomo the weather was to perfect to descend to the village: so I went up again.
The loop reminds somewhat the classical O circuit in the Paine, with Paso del Viento in place of Paso John Garner. It is difficult to say which of the two is better.
I have published several panoramas connected to this loop: Paso Huemul Viedma wide view Bahía Témpanos Reminiscences of Patagonia
Moreover, there are the panoramas from the Loma del Pliegue Tumbado: Cloudy Patagonia Sunny Patagonia The sky is always blue in Patagonia - II