Please don't take this amiss but if I were an employer I'd be looking for potential employees to display initiative in researching the history, background and work environment they are applying to join!
Have you tried the wonders of Googling "Mcmurdo base" or looked at the USAP website?
On this occasion I'm feeling generous (most unusual for a Scotsman) so here you are:
"There are recreational facilities, including a library, clubs, climbing wall/bouldering cave, gymnasium, weight room, aerobics room, band room and bowling alley. Volunteers frequently organize art shows, chili cook-offs, running races, yoga classes, dances, league play, lessons, lectures, etc. CDs, musical instruments, cross-country skis and other items are available for rental."
Sorry, but it doesn't look like ice skating is on the recreational list.
The above is from the USAP Participant Guide 2006-2008
It might be worth your while having a good read through this and following a few links on the site, e.g. Raytheon, etc.
I've never been to McMurdo but did a flying visit to Palmer Station on the Peninsula in 1971.
best of luck