When I found out there was a pool in town, I applied to be a "lifeguard." It's exactly what it sounds like, you guard life, just not violently. I'm a strong swimmer, much stronger than I look. I think maybe I won't be in the water much, unless there's trouble.
ʀᴀᴠᴇɴ ʀᴇʏᴇs I would like it if you come swimming with me sometime, it makes you feel weightless, like how you described spacewalks. You can do it even with your leg-- unless something has happened to your leg since I last saw you? Have you learned to swim?