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The Submarine Force Museum, located on the Thames River in Groton, CT, maintains the world’s finest collection of submarine artifacts. It is the only submarine museum operated by the United States Navy, and as such is the primary repository for artifacts, documents and photographs relating to U.S. Submarine Force history. The museum traces the development of the “Silent Service” from David Bushnell’s Turtle, used in the Revolutionary War, to the Ohio and Virginia class submarines.

Originally established as “The Submarine Library” by Electric Boat Division of General Dynamics Corporation in 1955, the Submarine Force Library and Museum soon gained respect for its archival and research value. In April 1964, the entire collection was donated to the Navy and relocated to the Naval Submarine Base, New London, Groton, Connecticut. The name “Submarine Force Library and Museum” was officially adopted in 1969.

The museum’s collections include more than 33,000 artifacts, 20,000 significant documents and 30,000 photographs. With so many holdings, the displays change frequently and a return visit will be a new experience. The 6,000 volume reference and research library is a world-renowned collection relative to the history of U.S. submarines and is open to anyone looking for information on submarines or submarine history.

Highlights and features
  • Preserving the history of the US Submarine Force.
  • Honoring veterans through naval heritage education.
  • Serving as a national repository for submarine history.
  • Showcasing tangible exhibits celebrating submariners' bravery.
  • Educating the public on submarines' historical significance.
Payment methods
  • Cash
  • Debit cards
  • Credit cards
Services
Guided Tours
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For individuals or groups that would like to add some fun or enhance their museum visit while still taking things at their own pace the museum offers various scavenger hunts and self-guided tours. Inquire at the information desk.
We now have an Augmented Reality Experience. Use the QR code to make the exhibit come to life and tour the USS NAUTILUS (SSN 571) from the Nautilus room. For more information email Jennifer.a.bourque2.civ@us.navy.mil our Director of Education.
Use Of The Museum For Reunion Or Memorial Services
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Scholars, students, naval personnel, and the public are welcomed and encouraged to use the library. This is strictly a research library and does not lend materials. A reading/study area is provided for public use. Various catalogs, finding aids, and the assistance of the staff enable researchers to locate pertinent materials.

With our small staff, the Library can only reply to written requests for information that are mail or faxed to the Library (see below). We can not respond to phone or email requests. Due to the volume of requests received, please allow up to 4 weeks to respond to your request.
Museum Theater
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A Century of Silent Service: Part I 45-minute film covers the early history of the Submarine Force through WWII. Begins at the top of each hour.

Mini-Theater: Forty-One for Freedom 20 minute film covers the design, construction, and purpose of the Navy’s earliest ballistic submarines during the Cold War. Continuous.
Reviews (14)
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Michael Cienkus
Dec 25, 2025
Great memorial. Staffed by veterans. Great place to take the family@
Kalie Schultz
Dec 18, 2025
It was free but we ended up giving a donation because this was a very cool museum to visit! Small but packed with really cool exhibits and the submarine was very cool to walk through. It is small but as someone with claustrophobia, going in with not many other people inside didn't make me anxious at all. Definitely recommend giving it a visit if you have a free afternoon.
Galya Rat'Kova
Sep 12, 2025
Very interesting and unique museum. Free. If you are in Groton, you must visit. The first atomic submarine 'Nautilus' is there and you can go inside.
Tony Reihl
Sep 10, 2025
Visiting the USS Nautilus is a must if you are in South Eastern CT. This museum is full with awesome exibits. The grounds it is on constantly have various military ceremonies going on all the time. The Historic Submarine Natilus is awesome. Knowing the part this submarine played in ushering in the atomic age of submarines is really meaningful to me. It is cool place to spend a couple hours. Did I mention it is free?

The pictures I shared are of a promotion ceremony. The man is being promoted to the rank of Captain. The picture of the Sailors facing each other is the most important part of the ceremony because the new Captain is swearing and oath of allegiance to support an defend the Constitution. The other picture is the part of the ceremony where the old rank is removed and replaced by the new rank. The people who get to do this honor are people who provided the support and encouragement for the Captain to make it. It was an awesome ceremony. Hope you liked it.
Danny Rowland
Sep 02, 2025
This thing is so cool! I mean where else can you walk around in a submarine?! And on top of that it's free. Even on the Sunday of Labor Day weekend it wasn't that busy so we were able to walk right in. They built up everything so that there are nice stairs going down into the submarine and you're on a linear path that is one way through the whole thing. It's nice because you know you're not going to miss anything and you just follow the path through. They have built a lot of glass walls so you can't touch anything, but they have little signs around explaining what things are. They have some mannequins playing the roles of sailors, But as you peek around corners, you're bound to be frightened a time or two when you're staring down a mannequin where you didn't expect one. My wife did this at 34 weeks pregnant so that should give you a certain gauge of the accessibility, but there are a few doors that are tough to get through because you have to lift your legs up and duck down low and there are a bunch of stairs throughout as well. They may have used an elevator for JFK, but they don't use it for you so get ready to take all those stairs . Plenty of handrails and signs telling you to watch your head. By my estimation, you're only exploring about 2/3 of the submarine or less because I'm sure the other parts are classified still, but either way it is a cool experience. If you're claustrophobic, it actually isn't as bad as you might think. The submarine sits only halfway submerged so it's acting more like a boat So if you think you will feel claustrophobic just time it so you're not going down with a big group of other people that way you won't ever feel trapped. It only took us 20 minutes or so to walk through, but if you wanted to get out of there quickly, you could probably get back out in 3 minutes or less with a pep in your step.
Jillian Ross
Aug 11, 2025
Donation based entry, so many displays and things for kids (and adults) to touch. The self guided tour of the submarine has some tight areas, and is one way traffic, I do not recommend if you’re claustrophobic. We spent about an hour and a half there.
Foxfai
Aug 05, 2025
Free museum? YES! It is! Went on vacation and brought the kids here. It's free (you can make donations too). You get to see all the histories about submarines, different types, the modernizations of them. Then you can actually board on one and browse through their limited area inside it. Kids were very interested but I felt they were too young to understand a lot of them. I will have to bring them back again when they are a little bit older.
Yuliya Marynenko
Aug 04, 2025
Great place for adults and kids! Very interesting museum and great bonus FREE ADMISSION!!!
Magorzata Szczupak-Kabaj
May 14, 2025
Cool place. You can enter real submarine, see the interior and try to imagine living there for the timespan of a mission. There is also an museum with history of submarines, origin of nuclear power as a propeller source. In addition there is no fee.
Laureen DeBenedetto
Mar 12, 2025
What a place to visit. The museum, although small, had plenty to offer. Interactive displays and a small theater that played a 50-minute movie. We thought that might be too long, but it was so interesting, it flew by! The Nautilus itself was amazing. I will say that there was only one other family (of 5) on it at the same time as us (6), so we had plenty of time to look and experience everything.
What a gem!
Greg Harris
Oct 17, 2024
The U.S. Nautilus is an historic and world renowned U.S submarine, and an absolute “must see” attraction in the state of Connecticut.

The U.S. Nautilus is recognized as the world’s first operational nuclear powered submarine. It is located at the Submarine Force Library & Museum which is positioned near the Naval Submarine Base New London in Groton, Connecticut.

When celebrating my wife’s birthday in September of 2024, I brought her and myself for a visit to the U. S. Nautilus, and we thoroughly enjoyed our exploration of this amazing ship!!!

When touring the submarine, my wife and I were able to visit and view many of the ship’s diverse sections ranging from the sailer’s bed rooms, the captain’s quarters, the kitchen and dining areas, the gallery, the control room, and the attack center. We learned that the Nautilus was fully launched in 1954 and was capable of carrying over a 100 navy sailors. The ship was in operation from 1954-1980.

We also learned that the submarine’s nuclear propulsion system allowed her to stay under the water far longer than previously built submarines, and that it was able to travel to farther remote locations, most notably the North Pole in the 1950’s.

Due to its pioneering technological capabilities and design, and its huge impact on naval history, the USS Nautilus is listed on the U.S.National Register Of Historic Places, and has been designated as a National Historic Landmark.

Visiting the USS Nautilus gave me and my wife a chance to view and understand the layout, interior design and setting of a submarine, and provided a glimpse of what life is life for a Navy sailor.

Both my wife and I highly recommend for everyone to visit and explore this outstanding historic landmark!!!
Josh Vega Jr
Jul 29, 2024
How cool was this place.

On arrival Naval FD on scene tending to a medical emergency. Staff was very attentive to the person by greeting guest out by cars and suggesting to view the pieces outside the museum while medical care was given and PT taken out. As an EMS provider, 5 Stars.

Once all clear, we went inside with kids and had plenty for their eyes to browse and their hands to touch.

This place is kid friendly!

The submarine was out of this world. The manikins in uniform forever sealed in action of what was done I. The room was an amazing way to commemorate the men that served on this vessel.

It was managed so that the tour would not be over crowded. There are even guided tours at the top of the hour.

It’s also pretty cool to see the US Base next door.
Sethunya Lejage
Jul 11, 2024
Took my husband and kids here for Fathers Day , awesome museum with rich military history. The best part is going inside the USS Nautilus to explore the marvelous submarine
Allison Wright
May 12, 2024
Great museum! It's FREE! If you are in the area definitely stop by! Small so it doesn't take much time. The walk through the forward half of the sub they say will take 30-45 mins...it took us more like 15 mins.
The rings out front showing the diameter of the sub hulls is an amazing visual!