Perhaps the worst possible hurdle to get over with the water is the fact that Yasuho couldn't get wet. Or, she could get wet, but only if everyone wanted to deal with a massive fish tail on her part.

So, with quiet care assisted by gentle water magic to keep things nice and muted, they're making good progress toward the distant lights. Easy. Perfect. It's-

"...No." That wasn't a 'no I didn't', as everyone can definitely figure out. "...No, aren't those things diurnal, it's the middle of the night..!" Yasuho hisses.