Had meniscus surgery on 12/19.
DH & I went to WDW 2/2-2/10,yep, just got back.
I am 60.Soooo, my PT loaned me this sci-fi looking rubber knee brace. It's not very big, kinda light and is adjustable with Velcro on the sides. Helped ALOT keeping my knee from hurting.
Took a lot of breaks, trying no long stretches of walking. Always iced my knee in the late afternoon back in our room ( WL). I think that helped a lot. It still got a little swollen on more active days,but icing it and lots of breaks during the day will help.