Fuck that shit.
I drowned once.
It hurts like fucking murder. Your whole fucking chest is on fire, and you can't see because all of your muscles contract at once, making your eyes lock shut.
Your body keeps sucking in lungfulls of water, trying to get air, but instead you feel like you're pulling in nothing but burning molasses covered in glass.
After you pass out, 'if' you're rescued like I was, you vomit the water, and everything else you've ate within the last week.
Its not all pretty like they show on tv and movies.
Your entire throat feels like you've deepthroated a 12 inch cactus covered in sandpaper.
That lasts for about a week.
Also, enjoy your body automatically retching whenever you try to drink water for the next couple days.
tl;dr - It sucks.