; 87 degrees, 49 minutes, 15.7404 seconds west longitude. (3) Charts The Sanctuary shall be generally identified and depicted on National Oceanic and Atmospheric Administration charts that shall be maintained on file and kept available for public examination during regular business hours at the Office of Ocean and Coastal Resource Management of the National Oceanic and Atmospheric Administration and in online format and which shall be updated to reflect boundary modifications made pursuant to this section. 6. Prohibition of certain uses (a) Prohibited activities The following activities are prohibited and are unlawful for any person to conduct or to cause to be conducted within the Sanctuary: (1) Cutting, removing, or any kind of subsurface salvage of the cypress trees. (2) Lowering below the surface of the water any grappling, suction, conveyor, dredging, or wrecking device. (3) Detonating below the surface of the water any explosive or explosive mechanism. (4) Drilling or coring the seabed. (5) Lowering, laying, positioning, or raising any type of seabed cable or cable-laying device. (b) Exceptions (1) In general The prohibitions in subsection (a) shall not apply to the following: (A) Fishing, diving, mooring, or similar recreational or commercial activities. (B) Necessary operations of public vessels, including operations essential for national defense, law enforcement, and responses to emergencies that threaten life, property, or the environment. (C) Construction or placement of artificial reef structures for the purpose of enhancing fishery resources, fishing opportunities, or recreational diving opportunities. (D) Exploration, development, or production of oil or gas pursuant to a lease, permit, or other authorization, provided such lease, permit, or authorization is issued on or before the date of the enactment of this Act. (2) Other activities The Secretary, acting through the Director of the Office of National Marine Sanctuaries, may allow a person to conduct an activity that would otherwise be