Chapter 36: Eclipse Forest
The distance they have to travel from the Moon Dragon City to their current location wasn't that far.
Based on the distance from where he is standing and the view of the Moon Dragon City in the far distance, he is guessing that it's only twenty to thirty kilometers away.
Although it's not far, it's also not close, hence making it just the perfect location for Monster Points. Over this place, the monster can get a great view of the Moon Dragon City whenever they want and see whatever preparations the city is preparing against them, at the same time creating plans on what is the best way to launch their attacks.