During my time south winters 92,93,94 we only had singel sex winterers. my last winter at Halley was i think the last only guys. I can not coment on girls wintereing. only for the summer there were some girls. this was an interesting/dificult situation to take in after being so long on our own. I was amazed with my own personal reactions on meeting a femail after so long living in a totaly male enviroment. i would think that this was a unique situation. i know that NASA were funding some of the medical research that was carried out on us over the winter with a mind on long stays on space staations/a mars trip.......
Wintered at Rothera 92,93. And wintered at Halley 94. Now live and work Turkey looking after privat yachts.