
Fort Carroll
An abandoned, hexagonal man-made island fortress in the Patapsco River, once intended for defense, now a bird sanctuary.
Highlights
Must-see attractions
Social
From TikTok & Reddit
Best Time
Easier boat access & views

Fort Carroll
Best Time
Easier boat access & views
Highlights
Must-see attractions
An abandoned, hexagonal man-made island fortress in the Patapsco River, once intended for defense, now a bird sanctuary.
"A shame to see this very interesting historic landmark slowly moldering away."

Boat Access Recommended
Access is primarily by boat. Consider kayaking or a small vessel for closer exploration.
Respect Private Property
While often unpoliced, it's privately owned. Be mindful of signs and potential legal issues.

Highlights
Discover the most iconic attractions and experiences

Hexagonal Fortress Structure
The entire island
Explore the unique hexagonal design of this abandoned military fortress, a testament to 19th-century engineering.

Colonial Waterbird Haven
Throughout the island
Witness a thriving ecosystem where nesting colonial waterbirds have made the overgrown fort their home.

Panoramic Bay Views
Outer edges of the fort
Enjoy sweeping views of the Patapsco River and Baltimore Harbor from this distinctive vantage point.
Plans like a pro.
Thinks like you
Planning Your Visit
Access & Trespassing
Island's Unique History
Best Times
Insider Tips
from TikTok, Instagram & Reddit
Boat Access Recommended
Access is primarily by boat. Consider kayaking or a small vessel for closer exploration.
Respect Private Property
While often unpoliced, it's privately owned. Be mindful of signs and potential legal issues.
Birdwatcher's Paradise
Be prepared for abundant birdlife and their remains; wear appropriate footwear.
Red Light Headlamp
If exploring at dusk or dawn, a red-light headlamp preserves night vision.
Tips
from all over the internet
Boat Access Recommended
Access is primarily by boat. Consider kayaking or a small vessel for closer exploration.
Respect Private Property
While often unpoliced, it's privately owned. Be mindful of signs and potential legal issues.
Birdwatcher's Paradise
Be prepared for abundant birdlife and their remains; wear appropriate footwear.
Red Light Headlamp
If exploring at dusk or dawn, a red-light headlamp preserves night vision.
What Travellers Say
Reviews Summary
Visitors find Fort Carroll a fascinating and unique historical landmark, appreciating its intriguing hexagonal design and the natural beauty of the bird sanctuary it has become. Many lament its decaying state and wish for preservation efforts, while acknowledging the challenges of private ownership and access. The island's history of failed development proposals adds to its mystique.
"Its a shame to see this very interesting historic landmark slowly moldering away."
Derrick
"Yo Maryland! This should be a State or National Park. C'mon, get your act together and make it happen."
John Filer
"Fort Carroll is definitely something you don't see everyday, everywhere. The wind was blowing hard and luckily I had the wind coming back. I will be back when there's less wind, so I can orbit around the fort and get different viewpoints."
Sang Lee
What People Like
What People Dislike
Frequently Asked Questions
🚇 🗺️ Getting There
Fort Carroll is an island located in the Patapsco River. The most common way to access it is by boat. Kayaks, small motorboats, or even larger vessels can be used, depending on weather conditions. There is no public ferry service, and landing on the island is technically trespassing as it is privately owned.
No, Fort Carroll is a man-made island and is not accessible by land. It is situated in the middle of the Patapsco River, south of Baltimore.
You cannot drive to Fort Carroll. It is an island and requires water transportation for access.
Fort Carroll is located near the Francis Scott Key Bridge section of Interstate 695 (Baltimore's Beltway).
Approaching by boat is generally safe, but always be aware of weather conditions, currents, and other marine traffic. The island itself has decaying structures, so caution is advised if landing.
🎫 🎫 Tickets & Entry
No tickets are required for Fort Carroll as it is not an officially managed attraction. However, it is privately owned, and access is technically trespassing.
Fort Carroll does not have official opening hours as it is an abandoned site. Visitors typically go during daylight hours for safety and visibility.
Fort Carroll is privately owned and not officially open to the public. While 'trespassers' are not typically prosecuted, it's important to be aware of the legal implications.
There is no admission fee for Fort Carroll. The cost would be associated with boat rental or fuel if you are using your own vessel.
Exploration inside Fort Carroll is possible but comes with risks due to its abandoned and decaying state. Be cautious of unstable structures and uneven terrain.
📸 📸 Photography
The hexagonal architecture of the fort, the surrounding water views, and the nesting birds offer unique photographic opportunities. Capturing the contrast between the man-made structure and nature is particularly striking.
Drone regulations can be complex, especially near waterways and potentially restricted airspace. It's advisable to check current FAA guidelines and local regulations before flying a drone.
Sunrise and sunset can offer dramatic lighting for photography, but daytime provides the best visibility for exploring the fort's details and surrounding landscape.
From the water, you can capture the full hexagonal shape. Once on the island, explore different levels and interior spaces for unique perspectives.
Bring a wide-angle lens to capture the fort's scale, a telephoto lens for bird photography, and a sturdy tripod if you plan for low-light shots. Ensure your gear is protected from the elements.
🎫 🌿 Nature & Wildlife
Fort Carroll is a haven for nesting colonial waterbirds, such as gulls and terns. You might also see other coastal birds and marine life in the surrounding waters.
While it's a haven for wildlife, Fort Carroll is not officially designated as a protected nature area. Its status as a private property and abandoned fort means its natural state is largely due to neglect.
The nesting season, typically spring and summer, is the best time to observe the colonial waterbirds.
The primary wildlife concern would be the birds and their droppings. Be cautious of sharp objects and unstable ground due to the fort's abandoned nature.
Fishing is generally permitted in the waters around Fort Carroll, provided you adhere to Maryland's fishing regulations. Always check local advisories.
For Different Travelers
Tailored advice for your travel style
👨👩👧 Families with Kids
Consider a short visit during daylight hours with calm weather. Pack plenty of snacks and water, as there are no facilities. Emphasize the historical aspect of the fort and its role in defense to make it an engaging learning experience. Ensure everyone wears appropriate footwear for exploring.
📸 Photographers & Urban Explorers
For urban explorers, the thrill lies in uncovering the fort's past and documenting its current state. Be prepared for challenging conditions, including debris and potential hazards. Always prioritize safety, inform someone of your plans, and consider visiting with a partner. The island's status as private property means you're exploring at your own risk.
🚢 Boaters & Water Enthusiasts
If you plan to land, choose a day with calm waters and be mindful of potential hazards around the island's perimeter. While landing is technically trespassing, many boaters do so for a brief exploration. Ensure your vessel is seaworthy and you have appropriate safety gear.
Deep Dives
In-depth insights and expert knowledge
The Unfulfilled Potential of Fort Carroll
Over the decades, numerous proposals have been floated for its use, none of which materialized. These included plans for a prison, a casino, and even a prominent 'Welcome to Baltimore' sign. The island was purchased privately in 1958 with the intent of developing a casino, but this idea was scrapped when it was discovered the land was part of Baltimore County, not Anne Arundel.
Today, Fort Carroll remains part of a private estate, largely abandoned and slowly succumbing to the elements. Its unique hexagonal design and intriguing history make it a fascinating subject for urban explorers and history enthusiasts, despite its inaccessible nature.
Navigating Fort Carroll: Access and Safety
When approaching or exploring the island, safety is paramount. The fort's structures are old and decaying, posing risks of unstable ground and falling debris. Visitors are advised to wear sturdy, closed-toe shoes and be cautious of their surroundings. The island is also a habitat for nesting birds, so respecting wildlife and their nesting areas is important.
For those venturing out, especially during dawn or dusk, a headlamp with a red-light setting is recommended. This helps preserve night vision while providing necessary illumination. Cell service is generally sufficient on the island, which can be a comfort for solo explorers or those needing to communicate.




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from TikTok, Instagram & Reddit