We used to fish the St Johns river and would catch lots of cool stuff. Find a dock that extends far enough into the river and you're set. We would always fish high tide, using shrimp for bait. Sheepshead, Stingray, Croackers were plentiful. Dad even caught a 4 ft. Hammerhead. Tie a piece of chicken to a string, drop it in and crabs will be all over it. Loved it when I was younger.