The Ocala national forest (onf) is pretty good lots of trails it’s $10 for a 3 day pass that you can pick up at any trail head. It’s about an hour and a half drive from Lakeland I think. There is also a spot out by Zephyrhills, I have heard that it is deed restricted, but  the majority of people I’ve talked to that ride out there have no clue what that means. With the amount of  people I saw  when I was checking it out (just pulled the truck in and ask 10 -15 people there about it) I doubt they all had deeds. Haven’t rode out there yet.