I don't know if they carry the adult crocs year-round at the parks, but they were fairly easy to find during the summer. I didn't really look for girlie colors since I was buying for DS, but they had a large display of crocs in the World of
Disney store in DtD. DS had a choice of tan or black and chose tan. We also saw the black crocs in the gift shop off the lobby of the GCH. I imagine they must sell them somewhere in the parks as well. The crocs were indeed expensive, $38 I think, but we used our AP discount (premium gets 20% off merchandise until Sept. 30 and all others get 10% off), and I told myself that at least crocs were more "useful" than the vinylmations my other DS was clamoring for.