Question about private tour

Hello. We have 7 people ages 15 – 78 that will be in Chiang Mai on Dec 28. I am interested in a private tour that goes to the Elephant Sanctuary, the King and Queen’s Pagodas, and some waterfalls. My parents are not able to do long walks so I don’t want any treks. If there are waterfalls viewable by a short walk that would be great. Is this possible?

Thank you,
Faina