I was looking around at some stuff on the Australian Antarctic Division’s web page when I found this little tidbit.  It would seem that some of the people working at Davis Base (Australia’s southernmost station on Antarctica) brought their fat bikes down with them during their long sojourn down on the Ice, and have done some riding this week:
www.antarctica.gov.au/living-and-working/stations/davis/this-week-at-davis/2018/this-week-at-davis-18-may-2018

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