Only what is normally due for parking. So if cabins have the $20 parking fee like other moderate resorts, you would be charged $20 a night...doesn't matter if it is a car parked at a cabin, an RV in the overflow lot, or a truck at the cabin and an RV in the overflow. It is just a $20 "with vehicle" charge. We recently did a split stay with the fort and CBR, and we were just charged the $20 parking fee per night, even though we actually had 2 vehicles (RV and a car) parked in the lot.Thanks. Do you pay parking fees for the overflow?