CassidyFamily: We today checked on Nyingarn and could not find it. The cache was originally placed on the totem, not beneath the base, not on the sign or anywhere else. The are was also very open and you could walk straight to it.
It seems to have gone astray, though because of the overgrowth and now you can see a clear path where the bushes have been trampled, we have decided to archive the cache.