@Canageek @BestGirlGrace As for remote locations, there are regular "DXpedition" trips people take to extremely remote places to put up stations and operate for days or even weeks. Many ham radio societies issue awards for contact with a certain amount of the globe (e.g. I have awards for working all 50 US states).
People who do so are generally on foreign territory and are operating under reciprocal operating agreements between the countries. 2/2