Fort Matanzas National Monument

Updated June 11, 2025

## Fort Matanzas National Monument: the small fort that protected St. Augustine’s “back door”

Fort Matanzas National Monument sits on the Matanzas River south of St. Augustine, Florida, protecting a strategic inlet that could be used to approach the city from behind its main defenses. Today, the experience is a rare combo in Florida: a free National Park Service site, a short ferry ride, and a compact stone fort surrounded by salt marsh and barrier-island habitat. Park Service

If you like places where history is easiest to understand because the site is small, Fort Matanzas delivers.

—

## What you’re actually visiting (and why it mattered)

### A Spanish watchtower built to stop a repeat of a real threat
The Spanish built Fort Matanzas to guard Matanzas Inlet—an alternate route that could bypass St. Augustine’s primary defensive system centered on Castillo de San Marcos. In 1740, British forces under Georgia’s Governor James Oglethorpe used the inlet to blockade St. Augustine and launch a long siege. Spanish authorities then ordered protective construction; work began in 1740 and the fort was completed in 1742.

### Built from coquina, in a marshy setting
NPS history notes the fort’s coquina stone was quarried near a former inlet south of Matanzas, and that construction was difficult because workers had to drive long wood piles into marsh to support the stonework. Park Service

### A national monument with a long federal protection timeline
Fort Matanzas National Monument was designated on October 15, 1924.

—

## The best part: it’s free, but it’s not “show up anytime”
### Fees
Every area of the park is free of charge, including the ferry to the fort. Park Service

### Hours (Visitor Center / park district)
NPS lists the monument as open 9:00 AM to 5:30 PM daily, except Thanksgiving Day and December 25. Park Service

### Ferry service schedule (critical detail)
There is no ferry service on Tuesdays or Wednesdays, and you must pick up a free boarding pass at the Fort Matanzas Visitor Center (not the city visitor center). Everyone—every age—needs a pass. Park Service

NPS also publishes typical ferry departure times (example listing): Wednesday–Sunday at 9:30, 10:30, 11:30, 12:30, 1:30, 2:30, 3:30, or 4:30, with boarding passes required. (Always double-check the official hours page close to your visit in case of weather or operational changes.) Park Service

Practical implication: if you arrive late, you might still enjoy the visitor center and trails, but you could miss the day’s last boat.

—

## What to do at Fort Matanzas (a realistic game plan)

### 1) Start at the Visitor Center (don’t skip it)
This is where you get the boarding pass and orient yourself. NPS also notes limited parking and recommends carpooling. Park Service

### 2) Ride the ferry across the Matanzas River
The short boat crossing is part of the experience—water views, marsh edges, and a chance to see the landscape the fort was built to control.

### 3) Walk the fort and focus on the “why here?”
Fort Matanzas isn’t huge, so it rewards visitors who think in lines-of-sight:
– What can you see from the fort toward the inlet?
– How would a watchtower signal danger?
– Why was this an ideal “alarm bell” for St. Augustine?

### 4) Add a nature loop before you leave
The monument protects salt marsh and barrier island environments; NPS describes the estuary and salt marsh as the most diverse habitat on the island in terms of animal species, with birds feeding along tidal flats and marsh edges. Park Service

—

## Accessibility and inclusivity notes (what’s truly accessible)
NPS is very clear on what works and what doesn’t:
– Wheelchair-accessible: Visitor Center, restrooms, dock, and ferry boat. Park Service
– Not accessible: the fort itself (there’s a shell path and a stairway of 15 steps to enter the fort). Park Service
– Boardwalk nature trail is mostly accessible, with two short sandy stretches where it crosses a service road; beach boardwalks ¼ mile south of the main entrance are accessible. Park Service
– Service animals are allowed in the Visitor Center, on the boat, and at the fort; Braille info is available on request. Park Service

If anyone in your group can’t do stairs, plan on enjoying the visitor center + ferry + shoreline/trails, and treat the fort interior as optional rather than “the main event.”

—

## When to go (and how to avoid frustration)
Because this is a small site with a ferry schedule and limited parking, timing matters more than at many open-access parks.

Best strategy for a smooth visit
– Arrive earlier in the day to increase your ferry options and reduce parking stress. Park Service
– Build in buffer time: boarding passes are required and must be picked up at the monument visitor center. Park Service
– If you’re traveling with kids: the ferry + fort are naturally bite-sized, which helps attention spans without rushing the experience.

—

## Quick facts for trip planning
– Address: 8635 A1A S, St. Augustine, FL 32080, United States (as provided)
– Type: Tourist attraction / National Park Service national monument
– Cost: Free (including ferry) Park Service
– Closed days (park hours): Thanksgiving Day + Dec 25 Park Service
– No ferry days: Tuesdays and Wednesdays Park Service

—

## Internal links (contextual opportunities)
I can’t verify the exact URLs on RealJourneyTravels.com from what you provided, but two high-intent internal link placements for this post are:

– Link to a St. Augustine trip-planning guide (parking strategy, neighborhoods, 1–2 day itineraries).
– Link to a Castillo de San Marcos guide to connect the “main defense” story to the “back door” defense at Matanzas.

—

## Outdated-data flags (what can change)
– Ferry days/times and operations can change due to weather, staffing, or safety decisions; rely on the current NPS “Hours” / “Basic Information” pages close to your travel date. Park Serviceturn0search8

Key Highlights

Fort Matanzas National Monument

Location

Places to Stay Near Fort Matanzas National Monument"Best free thing to do in St Augustine!"

Find and Book a Tour

Explore More Travel Guides