Trail walks would have been my first suggestion. Here's some info on creating a sensory trail, which might make the experience even more engaging (just think about horse desensitization before trying this with the student along): http://www.pegasustr.org/programs/pe...sensory-trail/ http://www.rda.org.nz/thearena/Resou...ry%20trail.pdf Chambersburg PA Therapeutic Riding Center Sensory Trail
These are some pretty involved examples, but you get the idea-basically, take your trail space, think about things that would hold your student's attention while challenging him in some way- focusing on all the senses.
Also, here's a list of several popular therapeutic riding games. This is a mounted games list, but given your creativity, I bet you could turn a lot of them into unmounted games where your student leads the horse, you work as a team leading the horse, etc.:) http://www.lessonsintr.com/2015/02/1...peutic-riding/
I also came across this game idea in an old Pony Club lesson book, and thought it might actually be really interesting to try it with rider with autism: Horse-watching:
Using photos in magazines or books, children can practice reading horses' body language and expression:
- attitude, posture, movements, facial expression
- eyes and ears
- way of standing
This can also be practiced at the barn, using real horses.
I wonder if you could work through an activity like this- maybe starting with pictures, moving to video, and then finally to live horses- to help your rider learn about horse body language so he might feel more in control of his interactions with his horse, and be more aware of potential signs that could lead to a kick? Without knowing your rider, it may work, it may not, but could be an interesting thing to try..