At first Jenny squeals, wrapping her arms around his neck tightly and laughing as they race over pools and ground to the one she had pointed out. There really isn't much time to think before-

SPLAAAAAAAAAAASH!

And she's sinking downward. Innate knowledge flashes in front of her eyes and, seconds later, Jenny is kicking and swimming like a pro. The water is warm and silky, a stark contrast to the blizzard outside.

She laughs again after breaking the surface, treading water while she looks for him. "Bart? Speedy, where are you?"