Access to Point 103 was by U-boat via a 6 kilometre wide ice cavern known as “The Harbour”. There was also a tunnel to the surface and aircraft including Focke-Wulf Condors but these were rarely used.
Point 103 was abandoned in June 1945 when the “Thulian Generator” (most probably a Shoggoth) malfunctioned and killed most of the remaining personnel.
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See Also: [http://web.archive.org/web/20010620015747/http://www.mailbox.de/~linke/disks/base211/baseen.html] Nazi bases and flying discs in the Antarctic.