Sizing of gratuities for whitewater river guides depends on many factors – these include, but are not limited to the length of the trip, the cost of the trip, and the level of whitewater on your trip. A gratuity can be based on the number of people in your rafting party or by using a percentage formula based on the overall cost of the rafting trip.
Gratuities based on a per person basis might be $10-$20 per person for a full day rafting trip. Using a percentage formula, gratuities in the 15%-25% range of the full day trip cost are standard. Gratuities may range from that amount for certain demanding, expensive, and/or high-level day trips.