There is no such place as a crime free area, it is an unfortuante fact of life but all you need to do is not be reckless and bascially use common sense just like you would at home, don't leave stuff lying around as temptation etc. Havng said I've been a lot of places and I never had a bad vibe for one moment in AC.
So basically use common sense and just get on and enjoy your break.