The trails here can be difficult to follow, either the Historic, or the Botanical trail (white or Green) will get you close to the cache. If you go off trail be very wary of your footing as rocky ground covered in buffalo grass is a broken ankle waiting to happen.
A great place for a family day out, and right on our back door, there is also a cycle way here all the way from Ambery Farm Park though you will have to ditch the bikes and walk the last couple of hundred meters. It is also close to Te Araroa, the long pathway.