I remember CGP Grey talked about staying with his wife's family in rural Hawaii, on his Cortex podcast. His address included something like "take a left at the big tree". The additional complication was that the USPS wouldn't deliver to the house, so they got a PO box, which is common in rural areas. But the USPS won't allow private carriers to deliver to PO boxes. So you need to use a different address depending on…
Two options:
* Specify both the PO box and street address in the mailing address, like
John Q. Public
PO Box 123
1 Main Street
Anytown USA 00600
This is best for situations where you don't know which carrier the sender will use. People who live in rural areas where they have both a PO box (because USPS won't deliver to their homes) and a valid street address that other carriers do deliver to might use this option.
* USPS PO boxes can receive from other carriers, if street addressing is used. https://www.usps.com/manage/po-boxes.htm#streetaddress>