33 CFR §165.102

1. (a)Location. The following area is a security zone: From point of land located on Cape Arundel at latitude 43°20.4′ North, Iongitude 070°28.0′ West; thence to a point approximately 500 yards southwest of Walkers Point located at latitude 43°20.2′ North, longitude 070°27.9′ West; thence to a point located approximately 500 yards south of Walkers Point at latitude 43°20.1′ North, longitude 070°27.6′ West; thence to a point located approximately southeast of Walkers Point at latitude 43°20.4′ North, longitude 070°27.2′ West; thence to an unnamed point of land located at 43°20.9′ North, longitude 070°27.1′ West; thence along the shoreline of Walkers Point to the beginning point. The aforementioned offshore positions are approximated by white buoys marked in orange indicating an exclusionary area.
2. (b)Regulations.
   1. (1)In accordance with the general regulations in § 165.33 of this part, entry into this zone is prohibited unless authorized by the Captain of the Port, Portland, Maine. Section 165.33 also contained other general requirements.
   2. (2)No person may swim upon or below the surface of the water within the boundaries of this security zone.