It was not one continuous hike. He takes frequent breaks. But travels back to where he last stopped and continues.
https://en.wikipedia.org/wiki/Karl_Bushby
Still very impressive, but a little less impressive than I first thought.
I don’t really think this would be possible given the nature of visas. Many countries require you to apply for a visa from your country of residence, not merely the nearest embassy. I guess with infinite funds he could fly back and forth to handle that, but doesn’t seem practical.
Very common hiking technique - section hiking
It would be impossible to do without taking breaks, as explained in the article:
> Due to visa limits, Bushby has had to break up his walk. In Europe, he can stay for only 90 days before leaving for 90, so he flies to Mexico to rest and then returns to resume the route.
Given that he literally swam across the Caspian Sea in order to avoid Russia and Iran because of legal issues, nevermind bring imprisoned in Russia due to what sounded like bureaucratic BS, it's more impressive than I first thought.