Hi and welcome to the Right Coast... I'm from CA. I now live just over the bridge on Sunrise from A1A.
We have a ton to dive here. You can shore dive right off the beach in front of your hotel. The first reef is honeycombed with plenty to see. The second reef is a kick out - about 15 minutes - but without a current you will last about 1:45. Both are worth the experience. We've been doing shore dives almost every day straight for three weeks and have yet to tire of them. You should do at least one, maybe two, and visit other areas up A1A toward Commercial Blvd. Hollywood and Dania down south have great dives as well.
We also have several great dive operators, all within 5 miles north of where you're staying, as well as a NEW big boat just south in the Hyatt Pier sixty-six marina... I'll be diving it next week and will be glad to let you know how they are. Boat dives here run about $40-$45 and tanks about $7. Just about anyplace they take you will be worthwhile.
Key Largo is less than a 2-hour drive south where you can dive the biggest wreck in the world, the Spiegel Grove - an awesome trip. If you need some boat suggestions just ask! Every one of them seems outstanding but even so people have their favorites.
I'm actually jealous that you are visiting us, recalling what its like diving the California coast. Feel free to join or even set up some shore dives in advance of your trip; we have an active group of shore divers here.
