There is a place on Barrancas/Gulf Beach that does offer classes. I can't remember the name but I'm sure that its in the book. In March they offered a special series of Gracie JJ classes...didn't get to attend but heard good things. Might be worth a look-see. It is a right turn heading towards the main gate...I think it may be listed as a boxing gym? If you drive down that way you'll see it.