Find the point of no return and go past it
This is a very difficult quest. Your hero has been bugging the local quest giver, and he got so annoyed that he tasked your hero with this. Find the point of no return and go past it. The quest giver thought this as a witty remark for the hero to go away. But the hero, dimwitted is they were, took this to heart, and will not stop until he completes his task. The only problem is, once you pass the point of no return, how do you get back?
1. Find the point of no return (Kind of hard)
2. Go past it (Easy)
3. Walk all the way around the other side of the planet to get back to your quest giver (Extremely hard)
On the first and third step, your hero will encounter many monsters, who do not want him to continue. The hero may suffer from anxiety on the second step. He may decide to turn around and decide not to do it, but then want to again later, which will make it take much more time to complete the quest. It should take your hero about 120 milestones to complete.