If you go to Farrelones, 3 Valleys, go ride Santa Theresa, its the easiest backcountry access I have ever seen, no need to hike, the only thing is you have to hitch a ride to get back to the top. You don't even need to buy I a lift ticket if you go down on the Farrelones side. I dont know about the situation right now, but if there's a storm during the week you will have fresh tracks all day. ANd every time there's a storm, next day it's bluebird. OH and make sure you buy food in Santiago before you head up there, cause there's absolutly nothing up there, no grocerie store, you can barely buy food, no laundry where I lived had to wash our cloths by hand. And be prepared it's damn expensive, lodging and lift tickets are far from cheap, you might wanna check out Argentina, I heard its cheaper