You reach the park and pay the $10 entry fee for the weekend.  The Ranger gives you a map and says "Goin Raftin?  Be sure to stay on the river 'til yer on park land.  The river cuts into private property for a good ten miles.  Some of the locals don't take kindly to strangers.  An' be careful, We've lost more people on this river than we'd expect".<br/><br/>[do you ask questions before you enter the park?]