I went for the first (and only time) three years ago. We went on the Lower New River in West Virgina.
Our raft flipped in a class 5 rapid called the Double Z and I got stuck UNDER the raft. OMG I thought for sure I was going to die! I've never felt so close to death in my life.
I was flipped into the water so fast that my eyes were still open, and both of my contacts flew out of my eyes and I lost my paddle. We all had to be plucked out of the water by other rafters, and were unloaded on the river bank. They had us all sit down for a little and calm down, I could not stop freaking out because with no contacts I can't see 5 feet infront of me! Then they told us all to get back in the raft so we could finish our trip.
YEAH RIGHT!!!! Like I'm going back in that thing... well after another 20 mins.... I got back on, and cried the rest of the trip because I thought I was going to die.
Needless to say... I drank a LOT of beer that night!!

And my hubby doesn't understand why I don't want to go again!
Ugh.... men......