There were a lot of River-breaking level Masters in the Saint Academy. If those River-breaking level Masters knew what they were doing, they would definitely ambush them on the way. Even a person who didn't know military affairs would understand this.
As for the sky dance level experts, although these River-breaking level experts really didn't take them seriously, these River-breaking level experts were very clear that they could deal with sky dance level experts. Even if a dozen sky dance level experts besieged them, they wouldn't have to worry about anything. However, if they really wanted to kill a sky dance level expert, it wouldn't be so easy. After all, those sky dance level experts were also alive, and they could hide and run.