Parishioners and anyone interested will gather outside St Peter's Church at 11.30am, after the 10.30am service, and walk to the statue of William Rees, the founder of Queenstown and leader of the Anglican church, to lay flowers.
Participants are encouraged to wear period costume.
Everyone will assemble in the garden bar of Eichardt's Private Hotel, where there will be a re-enactment of Bishop Henry Harper formally presenting Mr Rees with his licence to be a lay reader and preacher to the community, on March 15, 1863.
The re-enactment will be followed by the unveiling of a portrait of Rees preaching at St Peter's, which was donated by the artist Craig Primrose, Rosemary Marryatt (great-granddaughter of William Rees) and The Rees Hotel.
The Rt Rev Dr David Coles, Vicar of Wakatipu Anglican Parish, said this week the anniversary was of historical significance to Queenstown.
''It's a special occasion as we remember the actual date 150 years ago when the very first Anglican service was held, which was still only six months into the gold rush,'' Dr Coles said.
''We're raising the profile of this event to encourage former parishioners to register for the 150th celebrations which will follow later in the year and everyone is invited.''
The completion of the original wooden St Peter's Church and commencement of services will be celebrated on August 31 with activities to run throughout September.
Historical guided walks around Queenstown, an exhibition of weddings and baptisms through the ages, music recitals and a presentation by Mrs Marryatt are planned for August 31.
A commemorative service led by the Bishop of Dunedin is scheduled for September 1, and will include the first presentation of an original hymn by Mark Wilson. Other occasions to mark the anniversary year will be a tree-planting by Mrs Marryatt and a midwinter parish dinner.
