As you say, "not a bad thing given the options". So, you will start with water therapy. That's good. How far away is the hospital and how will you get back and forth? Do you use a walker or wheelchair or magic carpet or what? Sounds like there is some hard exercise just in getting to the pool so that you can get the gentle kind of exercise you want. Are there things you can do at home to exercise the leg? Is the other leg giving grief due to lack of exercise? Enquiring minds want to know!
I don't mean to be nosey, but you must know that a lot of us would like to be coach for a day and have some way of helping you on your healing journey, offering a virtual shoulder to lean on and giving words of encouragement as you make progress. And you will. Without a lot of "true grit" or what the local Finlanders call "sisu" (meaning "fortitude) you wouldn't have walked after the initial injury a century ago when you were a young fellow. You can do it. It sounds like there is hope for motorbicycle summer camp for boys who never grew up after all. I had resigned myself to there being no summer camp this year, but we will hold off on that cancellation notice. Something to shoot for, my friend! Woohoo!
SB