Christopher Columbus
Obtaining any kilometer achievement is much easier than it seems, you will do a ton of running...... A TON of running in this game. Bad news is don't trust your achievement tracker on the ONE as it is absolutely worthless, also the achievements aren't even popping for me, they just unlock without saying it so if you worry about it not counting don't worry you are fine.
You can view your current amount of Kilometers ran in the menu where you are viewing your character on the right. If you plan on enjoying this game don't go out of your way for any of these achievements until you are done with everything else.