Boeing 737-8FE ZK-PBK of Virgin Australia departing to the North.
It was well documented previously at:- http://nzcivair.blogspot.co.nz/search?q=pbk
ZK-RMX (c/n 67483) is the Matthew Gardner Cessna 172M Skyhawk II (almost) just down from Waiau.
This is a 1976 production 172 which went new to Canada; arriving in NZ for Eastern aviation at Napier from 25-07-1996. North Otago Aero Club took it on from January 1997 followed by Canterbury Aviation Ltd in November 2005 and then Ross Millichamp of Christchurch from June of 2011. Ownership moved to its current owner on 24-07-2013.