S.C. Code Ann. § 50-21-136
(A) There are established no wake zones on the following creeks and coves on Hilton Head Island in Beaufort County:
Broad Creek, to begin at the end of the existing no wake zone at Palmetto Bay Marina, running upstream in an easterly direction to the Cross Island Parkway Bridge, including all waters to the high tide line; to begin 50 feet downstream of the Broad Creek Marina, running in a northwest to southeast direction to the low tide lines that bound its channel, to 50 feet upstream of Nautical Day Marker Number 10, running in a southwest to northeast direction to 550 feet east of a dock located at 63 River Club Drive (Lot 3) to the low tide lines that bound its channel; to begin 50 feet downstream of the Long Cove docks, running in a north to south direction to the low tide lines that bound its channel, to 50 feet upstream of the Long Cove docks, running in a north to south direction to the low tide lines that bound its channel; and to begin at Nautical Day Marker Number 19, running upstream in a northeasterly direction to the headwaters of Broad Creek, including all waters to the high tide line.
Old House Creek;
Bear Creek (also known as Park Creek);
Lawton Creek;
Jarvis Creek;
Braddock Cove;
Calibogue Creek (also known as Baynard Cove);
Folly Creek;
Fish Haul Creek (also known as Coggin Creek);
Point Comfort Creek;
Jenkins Creek;
Skull Creek between Nautical Day Marker Number 13 and Nautical Day Marker Number 14.
There is also established a no wake zone between one hundred yards north of Nautical Day Marker Number 40 and Nautical Day Marker Number 41 on the New River in Beaufort County.
The no wake zone boundaries must be marked clearly with signs. The signs must be designed and installed as specified by the department.