Interesting concept, to airdrop coins with geocaching. My only consider is, that the coins will be a little bit centralized, since only some country are eligible to enter airdrop and only a small amount of people is geocaching.
Any country with an internet connection is eligible we will be updating the list in a few hours.
**UPDATE: I am currently building a web form for users OUTSIDE THE USA to allow people to apply to help post caches in their country. It should be completed sometime tomorrow**