Lifelong learning is a goal of mine, keeping my mind going and learning new things are a major goal now that I've retired.
Some unique places to look for learning opportunities is the local library.
I've never been particularly musical, so one thing I'm learning is the Ukulele. I chose it because it's small enough I can carry it around and it incorporates using my left hand, something I'm not that good at.
While I've been doing software all my life, there is always so much I have to learn.