The posted coordinates will take you to a part of Christchurch's art heritage that you may not have known existed. Over a period of three years, beginning with SCAPE 7 in 2013, a single streetlamp from each of 21 cities around the globe was gifted to Christchurch as a gesture of solidarity with the city during its recovery and rebuild process. These streetlamps have been installed along a section of Park Terrace, providing an actual as well as symbolic exploratory trail of light for pedestrians and cyclists. The installation is known as Solidarity Grid. You will find more information here: About Solidarity Grid. No information from the website is needed to find the coordinates.
Use the info you find when looking at these lamps to identify the final which is at S43 3A.BCD E172 3E.FGH
A = Singapore - Montreal
B = Number of lamps installed in 2013 minus 1
C = Adelaide - Belgrade
D = Ieper + Sopot - Sofia
E = Number of lamps placed in 2014
F = Number of letters in the lamp behind the plaque in the footpath closest the start point which commemorates the installation, plus the number of consonants in the city with the shortest name
G = The number of lamps installed in 2015 minus (Christchurch, Dorset * Sofia)
H = (Boston + Seattle)/2 - La Rochelle
Checksum=34
Please bring your own pen. The hide may get a little water in it after heavy rain. Please take care returning the cache to the hide to leave it upright but out of sight.
NOTE 18/4/2022 - apparently a light has gone missing but it is pretty obvious which one. I will check with the council about it. Also I think the original sign which was at the west end has gone - this was the start point.