A nice dive off of Ft. Lauderdale is the Tennaco towers. Max depth for the shallower towers is 105-110(35 meters) feet. Lots of marine life and coral. Avery nice dive! The deep towers sit in about 185'(55-60 meters) or so. I was out there last week and the water temp was 72 F degrees. You want a good exposure suit (I was in my dry suit). The thermalcline is at about 120'.