Lion Country Safari is definitely a place everyone should experience at least once. It's the only attraction like it still in existence.
I'm pretty sure everyone knows about the drive-through safari -- which is guided by either a tape or CD they give you at the entrance. You can drive at your own leisure, just make sure you make your intentions known to the car behind you so they don't get mad. I think their last safari is at 4 or 4:30pm daily.
They also have a park where you can walk around and enjoy lunch at the cafe. They also now have giraffes that you can get up close and personal with, but that was before the last time I went.
The cool thing that I remember from the last time (and it was a miserable time because it was raining) was the bird 'cage.' I don't recall the species of birds, but there's a walk in cage-type thing where you can feed these birds. It's a syrupy thing that the birds really enjoy. And they're not shy -- they land all over you just to get some food. So get your cameras ready!
I remember back in the day they used to charge by the car load and now it's per person, so that's the only downside -- it's not that cheap. Several times a year you can get discount coupons at Publix though, so keep your eye out for those. It really is worth it to go.
Here's a http://en.wikipedia.org/wiki/Lion_Country_Safari I found on Wikipedia about it for some background information.