As a shop and freediving/spearfishing instructor/expert, the nearest is probably Oliver Haroun
https://driftfreediving.com in Pompano beach. otherwise Austin in Miami or Florida freedivers in P B Gardens. There might be chances diving from shore , but going out with a boat is the usual way, in the area and never dive alone ;-) SWB and toothy critters are looking for lonely divers. In summer rashguard and shorts are ok, weight depends on how your floating coefficient is.