There's an outdoor gym in verona beach. It's a little waist-high glass fence surrounded, and Im not sure if peds can enter the little area. It's quite comical because the area belongs to the Ballas and when they start something while I workin out, I can see peds running around the gym area.
This Gym does not include any Self-Defense classes.
Now you dont have to go all the way back to Ganton when you're in Los Santos.