Originally Posted by
metoo
It is for the Inca Trail Permit which everyone (tour company) needs to pay to secure the hike.
It is a reputable tour company in Peru. From reading tripadvisor, it seems like many companies only accept Western Union.
I will ask about paypal.
Sounds like you've done your research so that is good.
Just save your receipts, and maybe pay a credit card fee for peace of mind if you must.
I did the Inka Trail Classic trek in '09 and didn't have to wire any money on Western Union.