Walker could wish all her wanted that the ride on the leviathan through the water was smooth. Ut it just wasn't. The water that pushed against their faces was brutal and forced him to use his mana to force it to move around them more. This made it much more tiring of a journey. However, he could not lie and say that it was not fast and efficient.
There were many times that Scylla swam up behind them to help one of them hold on. Midnight had fully learned the difference between her and the leviathan swimming in the water. But what really made the party impressed was that the demi-human soldiers were able to remain close to them. They were still a ways back but the distance was much closer than the party would have guessed.