We love to hike on our vacations. Usually park entrances are low cost or in the case of the Smoke Mountain National Park there is no entrance fee at all.
I had one hike I wanted to do in the Cades Cove area and that was Abrams Fall. The hike is five miles round trip and will take three to four hours to complete.
There is ample parking at the trail head with primitive bathrooms and a trash container. The road to the trail head is a small gravel road that veers to the right after the Elijah Oliver Cabin. We took some breaks along the river and it took us a little over three hours round trip.