The mystery remains how this host object ever got there. I discovered it several years ago purely by chance. It can sometimes get overgrown around the cache so be prepared to climb through vegetation.
Cache holds a few small toys and a Singapore F1 lanyard, plus paper to record logs.
If anyone knows anymore information about how the host got there, I would love to know.
No need to try to climb inside the host, the cache is accessible from the outside.