K.M.
I've boarded my dogs at Cottonwood Animal Hospital and been very pleased ###-###-####). My dogs are NOT escape artists, so I didn't evaluate the place based on those needs. I like it because they take very good care of the animals, and they have a fenced in yard. So, the dogs are allowed out of the kennels when time permits to rome the back yard. This is important to me because my dogs aren't used to being contained to leashes.
Just a thought: there are lots of hotels that allow dogs now. Have you considered taking him along?
Good luck!