Oktoberfest
I went to Oktoberfest last year and it was a lot of fun! I was pre-op when I went, and I'm glad of that because I was able to drink beer and eat lots of fattening foods I would never be able to eat now!
If you are post-op, I would wait to go until you are far enough out that you can eat almost anything (jus****ch your portions!) and have a half a beer if you want to. The German people are very warm and welcoming and they sure know how to party! You won't be able to keep up with them so don't even try!
Enjoy!!