AMAZING experience!!
My daughter (12) chose to do this for her birthday, inviting 6 other friends. We went by and picked up the boards, they were so nice, helped us load (I don't have a truck, but they fit in my small SUV) and we had a blast!
We probably spent about 4 hours in the river, got so close to the wild horses (they are harmless, of course don't mess with them), did yoga in the boards, did headstands, you name it!!
Highly recommend it! Who doesn't want a party like that? on our way back, we picked up a pizza and we were so tired!! She still talks about it (this was Sept. 2016).