Long before Ellis Island, millions of newcomers first set foot in America on this very spot.
What Castle Clinton is
Castle Clinton is a restored circular sandstone fort inside Battery Park, at the southern end of Manhattan. It was built between 1808 and 1811 as part of the harbor's defenses and is also known as Fort Clinton and Castle Garden. Today it is a U.S. national monument and a New York City landmark, and it is listed on the National Register of Historic Places.
Originally called West Battery, it stood on a small artificial island just off the shore, linked to Manhattan by a wooden bridge. It was roughly circular, with a radius of about 28 meters, walls of red sandstone quarried in New Jersey, and 28 cannons. Soldiers garrisoned it in 1812, but it was never used in combat.
From fort to theater: Castle Garden
In 1824 the city converted the fort into an entertainment venue seating about 6,000 people, known as Castle Garden. It operated that way until 1855, and it fit the spirit of the area: by then the Battery was a place for promenading and amusement, not just a military post.
It is one of those oddities that make New York fascinating. The same round building was a concert hall, an exhibition space, a beer garden and, later, a public aquarium.

America's first immigration station
From 1855, Castle Garden served for about 35 years as an immigrant processing depot. According to the sources, more than 7.5 million people arrived in the United States here between 1855 and 1890, making it the nation's first immigration station and a predecessor of Ellis Island.
When processing moved to Ellis Island in 1892, the building did not sit empty. It became the first home of the New York Aquarium, which opened in 1896 and ran until 1941. If migration history is what draws you, this stop pairs well with Ellis Island: what to see and with the family-research tips in How to find your ancestors who arrived through Ellis Island.
How it escaped demolition
In the 1940s the city's parks commissioner proposed tearing the fort down to make way for the nearby Brooklyn-Battery Tunnel. A long preservation debate followed, and in 1946 Castle Clinton National Monument was created. The National Park Service took over in 1950, and after several failed restoration attempts the fort reopened in 1975 following a major renovation.
Since 1986 it has served as a visitor center and as the departure point for ferries to the Statue of Liberty National Monument. Access, lines and rules change, so check the current information on the official National Park Service website before you go.

Battery Park: a park named for artillery
The park covers roughly 10 hectares at Manhattan's southern tip, facing New York Harbor. Its name comes from the artillery batteries installed in the late 17th century to protect the settlement. Before the Dutch arrived, the area belonged to the Lenape, and Dutch settlers called this end of the island Capske Hook, from a Lenape word meaning roughly "rocky ledge".
Today the park has paths, monuments and a glass-walled carousel, the SeaGlass Carousel. Around it, in the South Ferry area, are the ferry terminals: the Statue of Liberty and Ellis Island boats, the Governors Island boat and the Staten Island Ferry's Whitehall Terminal. One more detail: the park was closed from 1940 to 1952 because of the tunnel works, and in 2015 it officially took back its historic name, simply "the Battery".
Making the most of your visit
Arrive with time to spare. There are security checks before boarding and lines can build, especially in peak season. To plan around the wait, read How to avoid the lines at the Statue of Liberty and compare the choices in Ferries and boats to the Statue of Liberty: which to choose.
A good approach is to give the fort and the park some time before or after your boat trip, then continue on foot through Lower Manhattan with What to see near the Statue of Liberty in Lower Manhattan. If you would rather see the Statue without landing, the free See the Statue of Liberty for free: the Staten Island Ferry also leaves from this area.
Tours around Battery Park and Lower Manhattan
You can find guided walking tours of Battery Park and Lower Manhattan, as well as boat excursions leaving from this same area. Choose based on your time, whether you care more about history or views, and check what each option includes.

Manhattan Neighborhood Private Customized Walking Tour
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Wall Street 9 to 11 Memorial and Lower Manhattan Walking Tour NYC
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Walking tour in Manhattan Brooklyn Bridge and Waterfront
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Guided Bike & E-Bike Tour of Lower Manhattan and Brooklyn Bridge
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Lower Manhattan Tour: The Remnants of Dutch New Amsterdam!
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Statue of Liberty Express: Museum, Statue Grounds, Battery Park
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See more tours and activities on GetYourGuide →Frequently asked questions
What is Castle Clinton?
It is a circular red-sandstone fort in Battery Park, built between 1808 and 1811. Over time it served as a theater, an immigration station and an aquarium. Today it is a national monument, a visitor center and the departure point for ferries to the Statue of Liberty.
Was Castle Clinton the first U.S. immigration station?
Yes. As Castle Garden, it received immigrants from 1855 to 1890, about 35 years, before processing moved to Ellis Island in 1892. According to the sources, more than 7.5 million people arrived in the country through this site.
Where do the boats to the Statue of Liberty leave from?
From the Battery Park area in Lower Manhattan, next to Castle Clinton. There are also departures from Liberty State Park in New Jersey. Check the official site and the operators for current routes, boarding rules and availability.
Can you go inside Castle Clinton?
It works as a National Park Service visitor center, but opening hours, tickets and access conditions can change. Check the official U.S. National Park Service page before your visit to see what is open.
What else is there to see in Battery Park?
Besides the fort, the park has monuments, paths with harbor views and the SeaGlass Carousel. Nearby are the terminals for boats to the Statue, Governors Island and Staten Island, plus Bowling Green, just a short walk away.
How long should I spend at Castle Clinton and Battery Park?
Seeing the fort and strolling the park usually takes between half an hour and an hour and a half, depending on how long you linger at the monuments and viewpoints. If you are catching a boat, add time for waiting and security checks.
Is it a good place to see the Statue of Liberty?
From the edge of the park you can make her out in the distance on her island. For a closer look you need a boat: the official ferry with island access, a cruise without landing, or the free Staten Island Ferry, which passes in view but does not stop.
Keep reading

Ellis Island: what to see
An island that is partly New York and partly New Jersey, and almost nobody can say where the line runs.

See the Statue of Liberty for free: the Staten Island Ferry
The boat New Yorkers take to work happens to pass in view of a global icon.

Statue of Liberty crown: how to climb it
The crown is the highest point inside the statue you can still reach, and it is not for everyone.

The abandoned Ellis Island hospital: hard hat tour
Hundreds of babies were born here, and many travelers who arrived sick never left on the same ship.
Sources
Facts taken from Wikipedia and the U.S. National Park Service (public domain). Always verify practical information on the official websites.
Photo credits
- Afshin Darian, Wikimedia Commons, CC BY 2.0
- Ana Paula Hirama, Wikimedia Commons, CC BY-SA 2.0
- Ana Paula Hirama, Wikimedia Commons, CC BY-SA 2.0
