Some people can't

I will feel tired If I walk 15 km but it's possible do

sometimes

those pictures evoked nostalgia in me, please take more next time

Nostalgia of what? I visited Poland a lot and I member these lonesome landscapes that are all flat and there is only a single tree or two here and there, I unironically like that

when I was a kid I visited my grandma who lived in the countryside every Christmas and the views were almost identical

Well done Bernd

It takes me over three hours to walk fifteen

It took me 5 including tea breaks, but I also did ~400m in elevation gain

Did you do it for fun? To have a bit of a mental release, to ease out stress? Why?

Just because

I accept this explanation.