Section 5-804 - Owners of caves(a)(1) In this section the following words have the meanings indicated.(2) "Cave" has the meaning stated in § 5-1401 of the Natural Resources Article.(3) "Commercial cave" has the meaning stated in § 5-1401 of the Natural Resources Article.(4) "Owner" has the meaning stated in § 5-1401 of the Natural Resources Article.(5) "Person" has the meaning stated in § 5-1401 of the Natural Resources Article.(b) An owner of a cave or the owner's authorized agents acting within the scope of their authority are not liable for injuries sustained by any person using the cave for a recreational or scientific purpose if the prior consent of the owner has been obtained and if no charge has been made for the use of the cave.(c) An owner of a commercial cave is not liable for an injury sustained by a spectator who has paid to view the cave unless:(1) The injury is sustained as a result of the owner's negligence in connection with the providing and maintaining of trails, stairs, electrical wires, or other modifications; and(2) The negligence is the proximate cause of the injury.