It is alleged that when they reached the end of that road – a cul de sac – the boys dropped the motorcycles and jumped a fence barricading a cliff.
Beyond the cliff is a metres-long drop into Harold Park below. The officers were present when the boys went over the cliff.
One boy fell to the bottom of the cliff and has suffered serious injuries, according to a NSW Police statement. He was taken to Royal Prince Alfred Hospital and is undergoing surgery.
The second boy suffered minor injuries…