I am glad that you got some good advice from a specialist. I would still recommend a good pair of shoes for the long days! I also will throw in the suggestion of considering a single point cane. I have bad hips and I find using a cane gets me farther than just on my own. It was hard to make that adjustment at 35, but if I wanted to enjoy life I needed to keep myself as painfree as possible. You now can find foldable canes that you can put it a bag and pull out as you need to, they fit in the rides as well. It might allow you a little more park time! Enjoy your trip!!