We will have two elderly people who walk with a cane and cannot stand for very long. Can they actually see the most interesting things at the Center if walking distances is difficult?

My opinion you should bring at least 1 wheelchair with you in case 1 of them were to tire out between bus and facilities. Just to be on the safe side. They have accommodations, but not always just when you need them.

Yes No Problem

Of course. The attractions are nearby. the bus tour has facilities for people with walking aids

yes thats no.problem