So, Antarctica is the Ice Wall. Which means you must use the unipolar map. & there are no guards there. Except the FEers who say there are. & excepting the FEers who use a bipolar map, in which case there is no Ice Wall, or there is, but it's not Antarctica. & the Earth is either a disc w/ finite size & edges, or an infinite plane. & FEers can't agree on any of this! Not even on a map. All the navigational maps & charts are made by REers. Probably because all the navigators, helmsmen, pilots, & captains both of sea & air vessels are all REers. & thank the Lords of Kobol for that! Can you imagine a FE sea captain w/ 800 passengers & a unipolar map trying to get from the Falklands to Sydney? He'd probably crash headlong into Wellington, NZ on the way!