"He put one hand down to the edge and slipped into the water and felt it close over his head. It tasted of salt and not like a river at all. He wondered how long he could stay under without any breath. he let all the air go out of him and went slowly down until he got to the bottom. It was much quieter underwater. It felt much more like him. He lay down on the bottom and spread his arms out.
It didn't take long at all, with no air, to need to come up, and the first breath was something that had to be done, not something he decided to do, and that felt good. He played like that for an hour. Having no air and being deep underwater made you feel very alive when you came up, but apart from that it was just something to do."
I always do this at the end of a swim now, hahaha. And I think the book was a really depressing Catcher In The Rye-ish kind.