Re: Question concerning McMurdo Station
I've never been to McMurdo, but the idea of natural skating sounds very unlikely. There's endless amounts of ice of course, but it's all very rough and uneven. Walking or cross-country skiing are the most likely similar pursuits, with a lesser amount of downhill skiing.
I'm not a skater and never have been, but I didn't see anyone skating while I was south, nor did I hear of it either. You have to remember the wind too, so even if you could find a suitable natural ice-rink, the chances are it would be difficult to take advantage of.