heres the link to the SCDNR site for all boating and fishing regulations. It has maps of landings as well.
http://www.dnr.sc.gov/boating.html
This site has a lot of links to various maps and information on it fpr teh Charleston area.
http://www.charlestonfishing.com/
I highly recomedn looking at Google maps of the area to see just how much water there is around here. There is a lot to do around here