His Mama will strip to her skivvies and dive into any body of water she sees, with reckless disregard for the proximity of its temperature to that of a proper bath. Even if the body of water is at 6,377 feet above sea level and fed by snowmelt. Then again, she hails from the Land of 10,000 Lakes, and spent the better part of most of her summers in one.
His sister is clearly taking after his mother.
He, on the other hand, takes after his Baba in this regard, and never saw a body of water he couldn’t find a way to resist. Including this one.