Hi ive done quite a few of the trails near Orlando. If you only do 1 ride I suggest you do the Van Fleet trail. Its an old railway line and is about 20 miles long with only 1 bend. Its not boring, massive spiders, snakes and loads of tortoises wandering across the path. Its really safe tho.
If you want bike info the Van Fleet trail has a website. The Orange Cycles store near Orlando has good local info too. I think they do bike hire, you could always email them.