They included two men who had been on board the flight, who were heavily bandaged - one with a neck brace and the other with a sling.
Friend David said they had had a great day on Friday after arriving in Queenstown.
"He pulled out two bottles of champagne and some cheese ... and we made a toast to start off the weekend. That's what he was like. He gave his time and his money freely and abundantly."
No other details were given about the lead-up to the accident.
Mr Box's wife Adelle and the couple's two young children, Briana and Xavier, did not speak at the service but stood together with their arms linked as they cried softly.
The congregation heard how Mr Box - who grew up in Gisborne - had had a number of passions including photography and filming, writing poetry and building.
He was a devoted Christian and respected member of St Paul's Church on Symonds St.
His siblings Greg, Gaybrielle and Elizabeth, said their brother had always been an adrenalin junkie and had been on more than 100 sky dives.
Mr Box will be buried today in Albany.