How to identify INTRACOASTAL MARKERS: Intracoastal markers have small yellow stickers on them so people know it is the intracoastal waterway (ICW)! Regular channel markers do not have the stickers. 😃 think about this, we know a yellow buoy or marker means the area is a “special zone”, so the color yellow means special. Since there are yellow stickers on the mark, this means it’s a special marker - an ICW marker. #howtoboating #howto #boating #boat #yachting #yacht #captain #channel #marker #yel