Almost 200 bombs and artillery shells dumped offshore by the British military after World War II have been removed from the Disneyland site at Penny's Bay on Lantau Island.
Some of the 183 weapons had to be detonated on-site but none exploded without warning, senior government civil engineer Anthony Li Yuen-wing said.
Most had rusted or were without fuses and did not pose any danger.
Mr Li said the unexploded ordnance had been found in sand that was dredged from the East Lamma Channel and used in the Disneyland reclamation work.
He said that the Hong Kong government and Disney had hired a United States-based specialist to search for undetected bombs using a metal detector.
'When we find one we inform the police, and the bomb disposal unit takes it away if it is safe or if not they detonate it on-site,' Mr Li said.
Mr Li said that even if some bombs went undetected they would be so small and buried so deeply that the chance of an explosion was unlikely.