Well, after getting all four of the 6th generation games, Gabi (Lady Vulpix) helped me figure out what the (partial) contents of my Friend Safari is, so...

My Friend Safari's type is the Ice type, and the first two Pokemon that can be found in it are Spheal and Beartic.

I'll let you guys know when I get to the Hall of Fame in X and/or Y...and again, if any of you want to add me, my FC is 0834-0499-9418. I've already added Gabi...I just wish I could explore some other Friend Safaris someday (the more variety, the better, because I love variety).