Tenn. Code § 70-7-105
Any person eighteen (18) years of age or older entering the land of another for the purpose of camping, fishing, hunting, sporting clays, shooting sports, and target shooting, including archery and shooting range activities, hiking, dog training, cutting or removing firewood, recreational noncommercial aircraft operations or recreational noncommercial ultra light vehicle operations on private airstrips, for such person's use for a consideration may waive, in writing, the landowner's duty of care to such person for injuries that arise from camping, fishing, hunting, sporting clays, shooting sports, and target shooting, including archery and shooting range activities, hiking, dog training, cutting or removing firewood, recreational noncommercial aircraft operations or recreational noncommercial ultra light vehicle operations on private airstrips for such person's use, if such waiver does not limit liability for gross negligence, or willful or wanton conduct, or for a failure to guard or warn against a dangerous condition, use, structure or activity.
T.C.A. § 70-7-105