The cache is NOT at the listed coordinates. The final nano cache is NOT on church property. Please note the difficulty rating. Some specialist knowledge of church architecture terms, basic Anglican theology, and local geology, will be advantageous (or making friends with mr google). All questions can be answered from outside the church building. Please keep to the paths and take care near steep slopes.
The final cache is at N 52° 07.+FS' W 002° 19.&HG'
+ = the total number of deities in the Anglican interpretation of the Christian Holy Trinity.
F = the sum of the last two digits on the unobtrusive parish war memorial at the war memorial waypoint listed below (cachers unfamiliar with the busy A449 main road should use the footpath near this cache's headline co-ordinates and walk down towards the two storey Church Hall then use the pedestrian crossing at the traffic lights between Holy Trinity Church Hall and the war memorial). Note: there is an earlier and more traditional war memorial in the south east of the churchyard - this WON'T give you the numbers you need, although it is a classic portland stone cross and worth perusing.
S = the number of trefoil clerestory windows on the south side.
& = the number of sides on the steeple belfry.
H = the number of cruciform finials on the nave roof.
G = the bright green mineral in the building stone, a striking example of which can be found on the north side next to the west end buttress, is 7. diorite or 8. epidote or 9. orthoclase? (Hint: most cachers will need to google this and might find an image search quicker than reading up on mineralogy.)
Checksum: 28 and if you've calculated correctly then you will be rewarded with further points of historical interest (cachers using local knowledge to guess the final location should CONFESS in their logs 
).
Please park considerately. If you are looking for several caches in this area then you might find it easiest to park at one of the two free car parks on Link Common (Cockshot Road) or the pay car parks at North Quarry (B4232 North Malvern Road) or Tank Quarry (be aware this is sometimes locked at dusk). There are also stops nearby for several bus routes.
Holy Trinity Church was first built in Gothic Revival style in 1850-1851, to serve a growing community around the quarrying industry, but also has later additions, alterations, and repairs. It's been a Grade II listed building since 2008. Holy Trinity holds weekly services on Sundays and Thursday mornings, and the church interior is also currently open to visitors most weekdays from 9am to 3pm. More information can be found on the parish website: http://www.holytrinitymalvern.org.uk
Thanks to the Vicar and Church Warden of Holy Trinity Church for permission to place this geocache.
If you would like to add to the Church Micro series yourself then please look here
http://churchmicro.co.uk/
There is also a Church Micro Stats & Information page that can be found at
http://www.15ddv.me.uk/geo/cm/index.html