Last December we took our 3 year old and 6 year old to Mountain High and stayed in a cabin. It was perfect and a lot cheaper than Big Bear. We bought cheap sleds and we were able to do a little sledding right in front of our rental. There is also a sledding area just a little ways down the road, Mountain High area is relatively small, and it was perfect for families. You have to buy a pass to park, but it was not crowded and there were kids of all ages. Buy a good heavy jacket, water repellant pants, and good waterproof gloves, not mittens. A beanie is also perfect for little heads. Bring medication with you Tylenol works for pretty much everything, the prices were outrageous at the little supermarket. Look for cabins on VRBO, they have some really good deals depending on when you want to go. Have fun!