This place is famous for it's driftwood and fallen trees bleached by the sun and salt water. Clyde Butcher has several images he made here on his blog. I'm new to the party, but will return again and again to this gorgeous place. Expect more!
I live down in St. Augustine. I really need to get up to Big Talbot. Driven by there many times but never stopped. As you say, Clyde Butcher really likes the area which says a heckuva lot about the photo ops.