We did BB with our then 8yo daughter with CP. She sounds very much like your son. They were very accomodating, especially with the family raft ride. On the ski lift, there is an enclosed lift that we just wheeled her chair on and one of us were able to ride up with her. My DH and sons went on another lift ahead of us. It was wonderful. After we got Tiff off the lift, we took her out of her chair and carried her the rest of the way (not far at all) and the BB staff left her chair on the lift which took it to the bottom. Then they took the chair to the exit of the family raft ride to wait for us. It was perfect. We did this several times. We also spend a lot of time in the wave pool and on the lazy river. My DH and I switched off with each other so we could do the other slides with our other 2 sons. Don't hesitate to go to BB! You will love it! Just wear plenty of sun screen!! Have fun!