Luke had come to think that this could be a good way to work out and keep in shape. It worked his muscles well and was rather fun at the same time. He had also found that, though he wasn't too used to opening his eyes underwater, he could keep track of his location and any rocks or large fish with the Force.
He was a little uncertain when he broke the surface again and saw that he was no longer alone, but there didn't seem to be any ill intent to be felt. Finally, he ventured a greeting.
"Hello...Sorry...hope I'm not interrupting anything."