OK - everyone knows that beach dives are not a personal favorite of mine, but here's a list from Deerfield Beach to Lauderdale by the Sea - all with 20-30 minutes from SFDH docks at the Sands Marina.
North Deerfield Ledges - enter from the beach access beside the "Welcome to the City of Boca Raton". Rock formations about 150ft straight out from the access, and larger ledges NW from the access starting at 200ft going to 450ft interspersed with grass and seafans. I've been told this is a great night dive site. This is north of the Deerfield Pier and north of the public beach. I have not done this site.
Deerfield Ledges - south of the Deerfield Pier between the two public beaches. You need to enter the water in front of the Cove Beach Club condo building. Head straight out and will hit three sets of rocky reef lines, the first starting about 75ft out to the third at 125ft from shore. The current usually goes south to north, so be careful you don't drift into the pier. Lifeguards will shoo you away if you happen to venture onto the public beach coming or going. A Shower is available south of the condos on the street. Plenty of street parking early or late, or a bit of a hike to the public lot north of the condos closer to the pier. Not bad, I prefer the site below.
Trespasser's Ledge - site of the ill-fated
Why I Don't Like Beach Dives story.
Just south of the above site at the far south end of the public beach. Park behind the Embassy Suites hotel and walk down to the beach via the most southerly access stairs. There's also a shower here for when you're finished. Walk south 50 feet past the rocks to get off the public beach and set up camp in front of the condo building. Head straight out across the sand about 200ft until you hit the first reef line and numerous ledges. As above you'll drift north if you're not careful and encounter the zealous lifeguards. Despite the story a nice dive when it's calm.
Nolan's Ledge - about 1/2 mile north of the Pompano Pier and Atlantic Ave. Enter the beach between the condos at 520 Ocean Townhouses and the Silver Thatch Ocean Club. It's a long 600 yd swim out to the reef line in 15ft of water. All parking, showers and restrooms half mile south at the pier. I have never dove this site.
Pompano Dropoff - about 1/2 mile south of the Pompano Pier. The reefline is nto as far out, but still a 350 yd swim out. Enter the beach from SE 2nd Ave. Showers, restrooms and places to eat and drink after you dive. Being lazy, it's still too far out for me and I have not dove this site.
Palm Avenue Reef - popular site just south of Commercial Ave. Enter the beach off Palm Ave. Lots to see close in and further out. The first reef line starts 100ft out and is 200ft wide. The second reef line is 100ft beyond that. Lots of seafans, coral and sponges on both, and good ledges on the back of the first reef and on the second one. A few small brave lobsters with deep holes manage to survive on this oft visited reef year round. Only thing I don't like about this site is there's no showers to rinse off.
Vista Park - just south of Oakland Park Blvd. Limited parking and enter straight to the beach. First reef line is 150ft out to a very wide reef. Lots of coral, sponges and fish. I have never dove it, but have heard people swear by this site. There are showers.
The Blue Heron Bridge is a nice dive. You'll enjoy it.
There are other sites further out both north and south. Hope this helps and that it's a calm day when you go out.
Marc