CHS bronze tablet stamped 95 U 9412, set vertically in the concrete base of the boom-lift. It is south of the boom lift, 1.75 metres to the outer edge of the wall and is 20 metres to the south-east corner of the middle stem of the floating docks. It is 56.7 metres from the south-west corner of the harbour. Coordinates taken June 2021 using handheld GPS: +/-3m. Holding benchmark as of 2018.