Section 7.70 - Folly Island, SC to Hilton Head Island, SC(a) A line drawn from the southernmost extremity of Folly Island to latitude 32°35' N. longitude 79°58.2' W. (Stono Inlet Lighted Whistle Buoy "1S"); thence to Kiawah Island bearing approximately 307° true.(b) A line drawn from the southernmost extremity of Kiawah Island to latitude 32°31' N. longitude 80°07.8' W. (North Edisto River Entrance Lighted Whistle Buoy "2NE"); thence to Botany Bay Island in approximate position latitude 32°33.1' N. longitude 80°12.7' W.(c) A line drawn from the microwave antenna tower on Edisto Beach charted in approximate position latitude 32°29.3' N. longitude 80°19.2' W. across St. Helena Sound to the abandoned lighthouse tower on Hunting Island charted in approximate position latitude 32°22.5' N. longitude 80°26.5' W.(d) A line drawn from the abandoned lighthouse on Hunting Island in approximate position latitude 32°22.5' N. longitude 80°26.2' W. to latitude 32°18' N. longitude 80°25' W.; thence to the standpipe on Fripp Island in approximate position latitude 32°19' N. longitude 80°28.7' W.(e) A line drawn from the westernmost extremity of Bull Point on Capers Island to latitude 32°04.8' N. longitude 80°34.9' W. (Port Royal Sound Lighted Whistle Buoy "2PR"); thence to the easternmost extremity of Hilton Head at latitude 32°13.2' N. longitude 80°40.1' W.