Well I used to do that for a living. The mos textreme 1 person adventure, at a time where there was no GPS or Cellphones. Just depending on myself.
I crossed the Inland Ice of Patagonia, took 4 weeks. It is a huge glacier country, nothing but ice, from Argentina to Chile. Just barely survived.
4 weeks you have to carry everything on your back, its rather insane.
After I was fit enough I crossed the Andes further South. I remember this, most got lost in the haze of survival. I started in this small village, 100 people . I t was just bevor Christmas the priest came and invited me for the celebrations. When I got to the church he told me we are today celebrating Jesus Christ and your spirit of live, we will pray for you, so you will not die, give you strength in your darkest moments. I do not believe in a god, he knew that. The Messa was rather powerful, they song those songs with such conviction, Senior...........
When I finally started, the Mainstreet was lined with the People, at the end stood the priest and the mayor. The priest asked his god for my blessing and the Mayor just hugged me and said may you die well. It became a very brutal struggle against the mountains and the elements. I was sure glad I had been there before.
It was a nasty summer in that area weather wise, so I started day 1 to rationing, snow fog extreme cold serious cold. The going was rather hard so to say.
I developed a habit, I count, every step, one at a time, I count everything I do since the. I was two weeks late on the Chile side and considered dead.
Took a year to heal from the exhaustion and frost bite, lost 2 toes and had no fingernails left, frost bite. I did the Andes twice more, because if this enormous challenge. After that I had to take a 2 years pause, I was just done, physically and mentally. Just drained, no spark left.
But then this bug hit me again. So I travelled to Antofagasta, in Chile, the Atacama Desert. it goes from 0 to over 6000 meters, something like 350 km. The driest place on Earth. I have no ides how I made it, except for the wild and no nonsense entries in my dairy.
Most of the time when the shiit became rather deep, I have no memory of it, only same day diary entrances, which are very short explanation. The Atacama should have killed me of, it was rather cruel. I was recorded as the only person in know history to have walked across it.
Till then I had made a living with articles about my travelings. Barely got by, sometimes an outfitter would give me some equipment.
After Atacama I had to take a year of I was a medical mess, which had to be sorted out, and a mental mess, which I had to sort out.
So came the idea to cross the US from NY to LA, by horseback. Found even a sponsor, times had changed. So I became a Marlboro man. Compared to what I had done before, it was kindergarten. Only the Southwest desert was a challenge, to keep the horses alive. On this adventure the horses and their welbing was the grates challenge. 364 days it took.
Then I did the continental divide, next year same horses. That was a serious challenge. Mexico to Canada. Took 10 month.
According to records nobody has done both crossings with the same set of horses and that was the challenge. I had both my horses for many years after and they died of natural cause, at a very high age for a horse. My eternal brothers.
At one point I had exhausted that gene of adventures. and just became a normal person, used it up.
Today I love to tend my garden, scratch dog ears and pig bellies, have my bier. I do not dream about it what ever, the glorious past, I just did it and now can sit back and have a Bier.