They have cages set up with a machine that shoots out baseballs. You can chose different speed settings from easy (which if I might add; isn't so easy) to pro. It's pretty simple really, but jolly good fun. It's affordable too at $10 for a 35 balls.
Next time you have an hour to fill check out the Baseball driving range at Sippy Down's, Sunshine Coast. After all, it's nice to have something you can both enjoy doing together.