Boy critical after fall from Stanwell Tops A TEENAGER is in a critical condition after he fell from a cliff at Stanwell Tops, south of Sydney, during a school excursion. The accident happened about 2.45pm (AEDT) on Thursday when the 16-year-old boy, who was with a school group, leant on a branch near the edge of a cliff, causing it to break. Police have been told the boy then lost his balance and fell over the edge, approximately 40 metres down to the ground. Emergency services were called, with Ambulance Paramedic officers assisting at the scene. The boy has been taken to St George Hospital in a critical condition, suffering head and arm injuries. Police continue their investigations into the incident.