I picked up this free booklet on my recent trip. It has bus and train routes and suggestions for short walks and buses for the return journey. It includes some walks without stiles (steps over a fence - they mention that 2003 was the international year for the disabled. It also has bicycle hire.

I found it is online: http://www.cotswoldsaonb.com/files/AONBExploreguide.pdf

Frances Toronto, Canada