Dimitri, at least, seems more certain in his swimming technique - once he surfaces, anyway. Well, at least Byleth seems... Happy? Content with everything?

"I suppose you did not hit the water too hard, if that is your reaction." Dimitri reaches up, if only to sweep away the hair over his one good eye. Somehow, his eyepatch has managed to stay on despite everything. "I have heard that some can go even faster, depending on their companion Palien! And do tricks as well!"

Not Dimitri, of course. Because he literally just tried this for the first time. Right now.