Lynda

I am not sure where you are, I am in Northumberland, but I took a lady horse riding; she is in a wheelchair. The staff were used to helping disabled children,so they had all the equipment, and while it took 3 staff members to support her onto the horse ( they stayed beside her all the time ) she loved it and you could see how proud she was as she rode around the arena ,it was brilliant. She could, if wanted to, go to tend to the horses as well.
We also have small ponies who can visit and friends with horses , whilst not insured to take any residents riding, can come into the car park and the residents can go out to them.
Nothing is impossible, hope you find something for your residents.