There are no hookups for power or sewer. Some areas are no generator areas. There are restrooms and dish washing sinks at all the restrooms. No showers. The other reviewer did a good job. Most of the sites are walkups and there are many more tent sites than rv. There are only a few reserve-able sites. B88 is the best rv site in this park in my opinion. A21 is also nice. There are no bad sites just a few better than others. The nature trail is a short very nice trail of about 1 mile. There is a waterfall about 2.2 miles down a trail that a lot of people walked to and their kids went swimming there. Do not know what is at the falls. It is only about 30 miles to Gatlinburg Tn. if you like crowds and tourist stuff. We went through Gatlinburg but we liked the quiet of Cosby much better. There is no att cell service at the campground but at the bottom of the hill just outside the park there is a gravel area where you can get cell service.

Cosby is an absolute gem of a campground in the national park. It's the postcard campground for those that don't have to have hook ups. It's never busy, it's quiet, spacious sites and great hiking trails all around. It's the typical amenities for the park with shower less bath houses and water spigots along the road. We were there in the middle of summer and there were not many people camping. If you reserve online and it says no sites available, call the park. Most likely there are plenty of sites since only 28 I think it is are reservable online out of 165 sites.

There is a dump station that is easy access on the way in to stop and fill water tanks at. It's a little tricker turning into it when leaving and depending on your length you might want to plan on going through the parking lot and exiting out of it and across to the DS.

Access to the campground is easy from I-40 and it's paved two lane roads the entire way.