Saw this review on the Onion AV club:
"The Night Swimmer" by Matt Bondurant
www.avclub.com/.../matt-bondurant-the-night-swimmer,68194
Haven't read the book, myself.
Did find another review (in the Tulsa World) with this quote:
Bondurant is himself a swimmer - "someone who, whenever I see a body of water, I feel I have to dive into it"...