Do what you enjoy because you spend so much time at it. I too would enjoy a business in boating (part-time only). The way I see it, if you have good sense and a pure heart you would make a killing in the boat business. I run into WAAAAY too many "experts" up here that are long on bullsh$t and short on results.
If you were young enough read:financially independent, I would think that working for/with one of the highly regarded folks on this board would be a good direction. Experience is invaluable.