So, all of you stuck in a place where the ground freezes in the winter and you have no 'footing', such as sand, do you ride your horses on the hard frozen ground? Or do you wait for it to soften up? Right now we have snow on the ground, but I was concerned about riding my older gelding on the hard frozen ground earlier this winter... that maybe it would be bad for his joints... you know, like running on asphault is bad for peoples knees?