I haven't ridden in the Vacaville area, but it seems mostly flat (in the central valley) from what I can tell passing through. Perhaps more hills than Florida. The good news is that you are not too far the the bay area. Marin and Sonoma are my typical riding locales. The east bay is (Mt. Diablo, Berkeley hills) as well. A little farther in to the south bay, you have the Santa Cruz mountains. Head east in to the Sierra's and you have all the challenge you could need as well.Moving to the Vacaville Area from South Florida and was curious as to what the biking scene is like out there? Both Road and Mountain? I will pose this to the MTBR crew a well. I appreciate any and all feedback.