It's another free activity. Where to play. Check out an NCAA baseball game. During the spring, bike over to Xavier's or UC's field. Doubleheaders are often scheduled, so pack a lunch or plan to stop at a Clifton or Norwood eatery.
Golf is a nice-weather given, and to suggest it is moot.
So try a new course. If your skills aren't up to par, check out a driving range. You can't be there all day, but practice will put you closer to an actual round. Prices vary with the course. Where to play.