SCOTT HAMMOND/Stuff.co.nz Two people died and three others, all children, were seriously injured when a helicopter crashed onto a rocky beach at the mouth of the Kekerengu River, near Kaikōura. A funeral for a couple who was killed when a helicopter went down on a rocky beach, about 40 kilometres north of Kaikōura, will be held in Christchurch two days before Christmas. Andrew Hamish Davidson, 60, and wife Lin Chen, 39, will be farewelled at a service at Westpark Chapel in Burnside on Wednesday. A private cremation will be held after. Davidson was the pilot of the helicopter that crashed at the mouth of the Kekerengu River during a flight from Christchurch about 12.40pm on Tuesday.