As a bit of an aside, the strange wooden frame with pulley contraption that you may come across if you approach GZ from the rugby club end of the path is a Tug-of-War training aid, which I believe was left there for safe-keeping when a local team disbanded in the 70's or 80's
GZ is situated on the banks of the River Stour, adjacent to the sewage works (hence wiffy). These banks are popular with local anglers, and with Cycle Route 18 and Ashford Rugby Club close by, muggles may be an issue. The cache is a very small clip lock box, just big enough for the log, a pencil and maybe a Geocoin or small trackable.
Please retrieve this cache with care - I would not like to see it (or you) floating off downstream!!! Also, please only claim if you have reached the cache yourself.