The short answer is yes.  The more complex one is that the proximity of
diving operators and the convenience of trips to the dive sites depends on
your location.  Collins Ave runs the length of the beach.  There is an inlet
at approximately 163rd street, numbers will be in the 16300 range, and
another at about 21street, numbers around 2100.  If your lodging is close to
either, you're in luck.  If not, you're still not out of luck, but you are
likely to spend more time traveling to and from the boats.

There are both reefs and wrecks off of Miami Beach.  It's been a long time
since I visited reefs in that area.  There are too many that are a lot more
convenient.  There are tons of wrecks around there, everything from ships to
airplanes, to military tanks, all diver clean and deliberately sunk.

Lee

I usually dive with South Beach Divers. They do local trips, as well as day
trips to Key Largo.

www.southbeachdivers.com