Hmmm. as far as I know, there really isn't any available (or should I say accessible) shore diving in that immediate area.
The Breakers is extremely particular about their beachfront, being very exclusive, and you cannot walk through, as there are walls built on either end of "their" beach. If yout ry, you are politely escorted away.... If there is reef directly off the hotel, I've not heard of it.
There is a public beach within a 1/2 mile south of there, but I've never seen a diver or even snorkeler there. From the few times I've been there, there isn't much more than sand and some rocks (above water).
To my knowledge, pretty much all the diving in the immediate area is by boat (with the exception of the Blue Heron Bridge).