In Game of Thrones s05e10
Sansa Stark and Theon Greyjoy (Reek) jump off the wall of Winterfell to escape Ramsay Bolton.
In the scene the wall looked rather high and even though the ground was covered by snow, I just can not believe they would have survived that jump. Even if survival is possible, they should have had a couple broken bones, especially their legs.
So how did they make that jump and were able to keep traveling after it?