Steenberg Road connects the terminus of the M3 with Main Road (the M4), which continues southwards along the False Bay coast to Muizenberg, Fish Hoek, and Simon's Town; and with Ou Kaapse Weg (the M64), which crosses the Silvermine mountains to Noordhoek. Original plans were for the M3 to continue southwards as a freeway, as can be seen by the unfinished strips of tar under the bridge. The M3 passes through the following suburbs: