With the advent of cooler weather, Stacey Kollman and I are again offering our introductory mini-retreat: Horse-Assisted Yoga for Personal Transformation. You can read more at Stacey's site. http://www.deserthorseinc.com/yogatransform.html .
Yoga with horses is a little hard to describe, it's so deeply experiential, and unique to each person. It's a bit paradoxical, these large intelligent creatures so present and so skilled at the art of subtle nuance. You can see a bit of yoga with horses on my Facebook photo wall.