Rumor is the homes in that area are sitting on gold! They probably are. I am sure some artifacts were uncovered during construction.
Since it is illegal to dive without proper lease permit, I think our next best chance is on the beach, where the digging is legal and easy. At this time however the coins are out of reach; too deep. The beaches are constantly changing, and I feel there is a chance of something washing up when the winds are strong. Go at the lowest tide and use a detector not affected by salt water.
Chagy, I found two Spanish silver cobs back in the 80's just south of Wabasso Beach. I believe it was one day after hurricane David.
I didn't go again until 3 days after hurricane Jeanne. I found silver and some interesting items, but only two spike pieces, old timbers, and unidentifiable rusted iron from the 1715 fleet. My "waterproof" coil got wet inside and shortened my plans. I went again the morning after Wilma and found some lead sheathing and more timbers. That's about it. There is no telling what I might have found if I could have arrived there earlier or if I had a deeper MD or if my electronics didn't get wet. A lot of "ifs."

But I now have talked to the locals and have all the locations in my mind and on my GPS, and hopefully the next storm I will be ready.
The next storm would be your best bet. Get there early, bring extra food, water and gas, and work hard, and good luck. Many people I met have found gold and silver on those beaches!