(a) A line drawn from the southernmost extremity of Savannah Beach on Tybee Island 255 true across Tybee Inlet to the shore of Little Tybee Island south of the entrance to Buck Hammock Creek.
(b) A line drawn from the southernmost extremity of Little Tybee Island at Beach Hammock to the easternmost extremity of Wassaw Island.
(c) A line drawn from Wassaw Island in approximate position latitude 3152.5 N. longitude 8058.5 W. to latitude 3148.3 N. longitude 8056.8 W. (Ossabaw Sound North Channel Buoy ``OS''); thence to latitude 3139.3 N. longitude 8102.3 W. (St. Catherines Sound Buoy ``St. C.''); thence to latitude 3131.2 N. longitude 8103.8 W. (Sapelo Sound Buoy ``S''); thence to the easternmost extremity of Blackbeard Island at Northeast Point.
(d) A line drawn from the southernmost extremity of Blackbeard Island to latitude 3119.4 N. longitude 8111.5 W. (Doboy Sound Lighted Buoy ``D''); thence to latitude 3104.1 N. longitude 8116.7 W. (St. Simons Lighted Whistle Buoy ``ST S'').