On sand dunes at the end of a line of telegraph poles 100 yards East of Quebec Road on South side of footpath to beach.
SEALED All surface features were cleared away after stand-down and the truncated shaft was filled with concrete and covered over leaving nothing visible. In the intervening years, the sand has eroded leaving the external brick cladding of the West end of the monitoring room exposed together with the concrete filled truncated access shaft.
Opened in 1961 and closed in 1991.