I destroyed my knee snowboarding about 7 or 8 years ago. Tore my lcl, partially tore the acl and they could not tell if the mcl was just bruised or torn.
I did 1 Disney trip about 7 months after I hurt my knee and 3 trips after the surgery.
On the one trip between I managed to tare my acl the rest of the way, but I was already on the wait list for the surgery so other then a couple months of extra pysio it didn't make a difference that I made it worse, but now I'm a bit paranoid that the repair won't hold.
I was never a very active person before so my goals were just to get my knee back to what I consider normal. And I pretty much did.
Recovery was not that bad. The most frustrating thing for me was not being able to get comfortable sleeping and waking up every time I would roll over. It was very painfull the first couple days and since it was my first surgery I thought it was normal. But it was not. My surgeon put my tape on too tight and it was ripping my skin under the tape every time I moved. But after that was adjusted I didn't need any of the strong pain medication I was given, just used over the counter stuff some times.
Recovery changed the way I do Disney, but only in small ways. I had to switch to a back pack, my crossbody bags make my knee hurt way too much, the plane rides suck, my leg cramps up if I keep it in one position for too long, I avoid going down any stairs I can so the ones I can't avoid don't bother me as much after a couple of days of lots of walking, I will wait for the next bus so I can sit at the end of a long park day, and I learned that planting you feet so you don't bounce around on rides is very very painful and most likely how I tore my acl the rest of the way.