BBC News By Jane Wakefield image captionLocals often know beaches by names that are not on official maps Ordnance Survey is releasing a mapping tool which assigns local nicknames to coastal areas to make it easier to find people in need of help. Stinky Bay, Crazy Mary's Hole and Nuncle Dicks may be familiar names to those who live nearby, but they would rarely appear on any map. Now these alternative names will be overlaid on the official names on the OS map to help speed up response times. The system may eventually be used by other emergency services. Ordnance Survey, the official national mapping agency of Great Britain, first trialled the new nicknames on the south coast, but will now launch it nationally.