Forget hearing the F-bomb 20 times during the trip, we heard it 20 times waiting for the shuttle to take us to the drop off point. Unbelievably trashy atmosphere. Drinking, smoking (legal and not-so legal substances) frequent nudity, marshmallow fights, water balloons... It was like the lowest class bar I've ever gone to, but worse because there's no bouncers.
Granted it was memorial day weekend but from what I've now read, this is pretty much par for the course at Salt River Tubing.
We only saw one completely wasted idiot being medi-vac'd out. Which in itself is amazing. Darwin award candidates everywhere.
It's very sad because the river was lovely (besides from the dissolving puddles of marshmallow, broken water balloons, beer cans and such) The river itself earned the 2nd star - mainly because I feel bad for being part of the race beings responsible for treating it this way.
I guess if you're looking for a drunken, slightly post-adolescent party barge on tubes - then you're in luck. Otherwise STAY AWAY!