To help keep you on the right path:
SH85 end of Preston Road.
Zero tripmeter
0.3 Cattlestop
0.9 Cattlestop. Shed on R.
1.1 Turn R through gate. Track deteriorates.
1.5 Gate. Track turns R to follow fenceline.
2.6 Gate.
2.8 Small rise. Fenceline on R.
3.6 Gate. Fenceline now on L. Track now ruts through long grass.
4.3 Gate. Intersection with Cemetery Rd. Veer left (Preston Rd signposted). Surface improves.
7.5 Haybarn.
7.9 Ford.
8.3 End. Mundell Rd. Go R to SH87.
Obviously, if travelling in the opposite direction, make the appropriate adjustments.
Cache is a straightforward find. Small snaplock. BYOP. Please re-hide carefully.
Cautions: Ford probably impassable if there has been heavy rain. If so, use Cemetery Road as a bypass. Cache can be walked, run or MTBed to. Track great for trail or adventure-type motorcycles. Probably not suitable for two-wheel drive cars even in dry conditions due to ground clearance issues. Possibly OK in a soft-roader with good clearance. Piece of cake in a 4x4. Judge the time of year and recent weather carefully and make a call.