If you don’t know anyone residing or working in those remote corners of the world you can still receive covers from them. Here’s how I do it:
Put your cover and the request letter in a larger envelope and mail it to the base or administrative organization.
Expect your mail to take a long time to come back to you. Some covers could take well over a year to come back, and sometimes, they don’t come back at all. Be patient. It helps to know the shipping schedules so you can get your covers to the bases with plenty of time for them to be back on a boat (or plane) and back to you. If your covers arrive on the last boat of the season they might sit until next season for a return trip.
Remember that these bases are in the Southern Hemisphere: summer in the North when it’s winter in the South. During their winter months, access to most of these bases is nearly impossible so in most cases, mail will only be delivered during their summer.
Sometimes it is possible to buy some old and interesting stamped envelopes on the internet market but for sure, those addressed directly to you, as collector, have for yourself a better value.
Learn more at:
http://stamps.mybalconyjungle.com/antarctic_covers/antarctic_covers.html