warmbeach, I don't mean to sound personal but what is the nature of the disability? What type of limitations are involved? What kind of activities are of interest? That might help us better suggest locations.
If mobility is a challenge, you might want to consider a cruise on a rather large ship. Elevators and wide hallways are available as are handicapped accessible bathrooms. Just let your travel agent or the cruise line know any special requests from the outset, and they will accommodate you and your party. Bon Voyage! Cheers...Marolyn