Learn sailing.
There's two free courses, and I have a discount code and advice if you want to go beyond the free ones.
Discussion
never ever sailed before, and it seems so far from my expertise that i'm considering this as a challenge
Their free courses sold me on the online format.
While in-person practical experience is more important than ANY "certification" (as this site will tell you) there are some things that are easier to grasp when you can "see" things like wind.