Nick, who was the director and general manager of Alpine Helicopters and the youngest son of Sir Tim Wallis, was killed alongside Department of Conservation workers Paul Hondelink and Scott Theobold in a helicopter crash in Wanaka last Thursday.
The crash came less than three months after Nick's brother and fellow pilot, Matthew Timothy Wallis, was killed in a helicopter crash in July.
Mr Hondelink's funeral will be held on Sunday afternoon at the same location.
Nick Wallis' coffin is carried into the Alpine Helicopters hangar. Photo / Stephen Jaquiery
The family of Mr Theobald, who was also killed in the crash, will hold two funeral services - one at 2pm on Wednesday at Glentanner Holiday Park near Aoraki/Mt Cook, and one at 2pm on Saturday November 3, in Whangarei.