Heading south on A1A is Fort Matanzas National Monument, the guard of St. Augustine’s southern river approach.
A short ferry ride (by the way, it's free!) across the Matanzas River takes you to the fort which is situated on a wild, uninhabited barrier island called Rattlesnake Island. Don’t worry though, I have been to the fort many times and I’ve never, ever, seen a snake of any kind. (Actually, the name was taken from a nearby fishing camp!)
The ferry leaves every hour beginning at 9:30 a.m., weather permitting. Mid-day is the busiest time of day and you may have to wait. Early morning, I think, is the best time to visit this park.
Most days a re-enactor is on duty at the fort to show you around and answer your questions. Your boat captain or interpreter gives a short talk on the way to the fort. The visitor center has a comprehensive video outlining the history of the fort which is shown on request.
The park has a short 1/2 mile nature trail through the maritime forest which is entirely on a boardwalk for easy walking and protection of the flora and fauna. Along the walk is a monument honoring the hundreds of French Huguenots that were killed by the Spanish.
You can bring your fishing pole (check license requirements) and cast into the river along the shore. At low tide you can stroll along the river bank and possibly sneak up on a Great Blue Heron or Egret as they fish for their dinner.
There is also a boardwalk to the beach for shelling or just sitting in the sun….
Hours: 9:00 a.m. until 5:30 p.m. Every day except December 25.
Fees: None to enter the park or to take the ferry Donations are gratefully accepted.