We rented a home in March...cozy, kid friendly, 3 bedroom in Christmas Valley, perfect! It sits on a wilderness preserve about 15 minutes drive to South Shore. You will never even need to leave, though. It was perfect for my 4 and 2 year old. Great for sledding in the backyard, perfect terrain, just what you want. We went with another family and just had the best time.
I can't find the link, but the owner is Brenda Kashuba [____@____.com]. Send her an email and let her know that I referred you. She is wonderful...we will go back year after year.