While this may be only a US concept at the moment, there’s no reason why it couldn’t be done in just about any country in the world…
Fatpacking organise 2 week treks in various parts of the US that are meant to be a combination of fun and exercise.
It’s not particularly expensive either, though obviously you have to get there
Sounds like fun. I do like to get exercise that gets me out and you hardly notice that it’s exercise. Not really feasible for me to have two weeks off without my family.