Anybody ever gone Tanking?

Supposedly it's all the rage in some areas.

In a nutshell, you take a large round livestock watering tank

http://www.tractorsupply.com/webapp/wcs/stores/servlet/ProductDisplay_10551_10001_28417_-1______?rFlag=true&cFlag=1

Put 5-6 lawn chairs in it, a cooler in the center of y'all, and launch yourselves down the river...

Truth be told? Yeah, I'd do it!