Guile Point East and Guile Point West are a pair of stone obelisks standing on a small tidal island on the other side of the channel. The obelisks are leading marks which, when aligned, indicate the safe channel over the bar. When Heugh Hill bears 310° (in line with the church belfry) the bar is cleared and there is a clear run into the harbour. The beacons were established in 1826 by Newcastle-upon-Tyne Trinity House (in whose ownership they remain). Since the early 1990s, a sector light has been fixed about one-third of the way up Guile Point East.