River Rafting - Action Whitewater Adventures. Your aqueous adventure consists of either a half-river South Fork run for $60 (regularly $120), a full-river South Fork run for $80 (regularly $175), or a full-river Middle Fork run for $100 (regularly $200). http://livingsocial.com/deals/16385-river-rafting-adventure?msdc_id=37&amp;ref=SACDeal030411_37_8743email