16 days!! OMG!
That stuff can be thrilling! Peg and I did it about 16 years ago in West Virginia. Had the wet suits and helmets on. We were riding class 4 rapids. I got pitched out of the raft in the first two minutes!
The whole thing was a blast. I can't remember sleeping as soundly as I did the night after that trip.
I'm not sure my 58 year old body can endure a similar trip now!
David