One of the great treks of the world. I think. Crazy peaks with untold climbing potential. Everything is beautiful and unique.
There are two trails. One is a 7 day circuit that circumnavigates the mountains - the other is a four of five day walk that wanders around the lakes and takes in walks up to the three main saddles.
Everything here is geared towards the walker having a safe and comfortable time whilst being out in the extremes. You can sleep inside accomodation every night. You can eat in restaurants. There are little shops that sell cold beer and wine and the trails are patrolled regularly by rangers.
Getting in and out of the park can be organised by any hotel in Puerto Arenas, a place that is well worth a visit itself.
(If you are following my recent posts then, yes, I have just discovered the youtube adaption and am going through my back catalogue of holiday vids)