It is a beautiful fort. The historic village makes a great supplement as well.
For a simple, square (with bastions) design, it has a real class about it. I also like the entry through the ravelin on the gorge of the fort.
I like the entrance too, but due to Covid the interior was closed to the public. I was able to enjoy an evening stroll along the perimeter.
The coquina used was also the material used at Wormsloe in Savannah. I don't know if you're familiar with it, since I don't believe it was technically a U.S. Fort at any time, or anything like that. But it was the private home of one of the first settlers in Georgia, and he built it with walls so that it would double as a fort. It was made of coquina.
The owner was in charge of a few marines (I believe they were "marines," but I'm not sure of the terminology employed at the time), who garrisoned the waterways right outside the home/fort. They used a swivel gun, if I remember correctly.
I might be confusing the technical details, since I only learned about everything on site when I visited last summer.
Anyway, the old fort residence was destroyed or fell into ruins, and the family still owns a house right next to it. The original Wormsloe itself is now part of a park, and the coquina ruins are still there.
It is a very interesting little piece of Georgia history.