Whitewater rafting is a GREAT time!!
It’s an AMAZING activity for YM and YW too. They learn to work (paddle) together, they get to have fun on the water, it’s exhilarating, and whitewater rafting holds a lot of metaphors for life (e.g., one person falls out of the boat, we pull him back in, paddle together, listen for and follow instructions from the guide sitting behind who is unseen, etc., etc.)