2 is a Cessna 172S Skyhawk SP (c/n 172S-9619) (NZ) Ltd was first registered to Glenorchy Air Services and Tourist Co Ltd on 03-05-2004. In July of 2007 it moved up to CTC Aviation Training at Hamilton; returning to Glenorchy Air Services and Tourist Co on 29-10-2007. It moved over to the Wakatipu Aero Club on 01-07-2010 and carries their Air Wakatipu markings.
Another Wakatipu Aero Club / Air Wakatipu aircraft is this Cessna 172P ZK-ETT (c/n 172 74937) which has been with the Club since 06-01-1998. (That will be the nose of the Gulfstream G-V N780W on the right of the pic)