Answer:

canoeing

AnswerCrossword Clue
CANOEINGEmulating some "Deliverance" characters (no, not those, geez)
CANOEINGChallenging the rapids, maybe
CANOEINGTraveling by birchbark
CANOEINGGoing by birchbark
CANOEINGWater recreation.
CANOEINGCamper's activity
CANOEINGUsing a kayak
CANOEINGSummer camp activity