Slow Puncture (LJCC): Regrettably, Angus88's post was correct, the cache is gone.
A large array of empty booze bottles and a street sign ripped out of the ground nearby suggests some jungle-juice-inspired hi-jinks, of which poor old cache was collateral damage.
Interestingly, in a sign of how the booze-addled mind works, the cache had been replaced by an almost perfectly spherical rock...