With Treyton's invitation and the conditions he laid out, Rhet also agreed to it without thinking for too long.
This was even after Yang had explained that they would travel further before going back to the north base.
In the next two days afterwards, it only snowed a little, and at other times it just remained cold.
So, Treyton finally decided to move forward and go to their next destination even though everything was still covered with thick snow.
They weren't sure how long the winter would last, so Treyton decided that they had to move already to cover more ground, as they still had three more places to visit before going back to the north base.
They had people who could manage the road for them. Even if it was a bit of a hassle for those people, it could also serve as part of their training since they had to continuously do it until the weather turned better.