Most muggles will patiently let you find a cache or two. The first time Bowerbird watched Owl find a cache she was hooked. She spent an entire blissful day finding caches and even insisted on more finds after dinner. Owl then received regular invitations to come down to the Mount and find some more.
The next time Owl brought SA Sewer Rats, she took Bowerbird out for a tour of the backblocks of the South East. Bowerbird was in seventh heaven and the other two were delighted as well. What a unique muggle! She doesn't help with the finds - she doesn't even get out of the car - but she loves the smiles on the cachers' faces and the stories on the way to the next find.
A cache in Bowerbird's honour was called for and in a place that she frequents. The cache is technically on private property, but is placed with the permission of the officer (i.e. minister). There is a Pokestop at the Army, as well as a favourite drinking spot for the local homeless population, so they are used to having shady characters hanging around, of all shapes, sizes and stations. You might even encounter Bowerbird.
If you brought your own muggle along, feel free to mention them in your log.
Local maintenance will be done by Bowerbird, with possible help from Mogni. While you are there, feel free to do some CITO as a thank you to the Salvos.
You will need to bring your own pen or pencil. (Which every cacher should do anyway.)