The moon of the ninja world was not a naturally formed satellite, but something artificially created with ninjutsu, so there were two ways to get up there.
The first was to treat it like an ordinary celestial body and create something similar to a rocket launch device, adopting the Apollo Moon Landing Program.
Given the ninja world's current tech tree, this was somewhat difficult, but it was not absolutely impossible.
After all, the Chakra Cannon Kumogakure built could launch shells all the way to the moon. There was no reason others could not imitate and produce something like that.
In matters like this, Araki had confidence in Sasori of the Red Sands. A moon landing could also pique his interest; it would simply take time.
The second method was to find the back door the moon people themselves had left behind.
When the moon was first created, of course it had no back door. It was merely a tool used to seal Kaguya.
But later, Otsutsuki Hamura, for reasons unknown—some emotion of his own—chose to take his descendants to the moon and settle there. The public explanation was that they were there to watch over Kaguya's seal.
The road they had taken to the moon back then was the back door.
According to Araki's memory, the back door was located in a forest blanketed with endless snow, where there was a strange glowing lake that could even block the vision of the Byakugan.
As long as they could find that lake, all that remained was to follow the path straight on, and they would reach the moon.
Thus, with the plan decided, Araki dispatched a five-person squad led by Kaguya Black Bone to conduct a dragnet search in places where ice and snow never melted year-round, such as the Land