Touring the Hero P-821 Submarine in Tivat.

Touring the Hero P-821 Submarine in Tivat.
September 2021.
It certainly came as a surprise when, one sunny afternoon, Sladja and I came across a giant submarine parked in one of the squares in Porto Montenegro. Well, two submarines, in actual fact, a kind of mum and daughter duo.
I have since read a few online articles claiming that these historic vessels are something of a hidden gem. Which made me laugh, as the bloody great things literally couldn’t be any more conspicuous.

Touring the Hero P-821 Submarine in Tivat.
Eventually, having settled into daily Tivat life, we stopped by one afternoon for a closer look. To our delight we learned that both subs were built by the Yugoslav Navy: Mama Hero P-821 in the 196os, baby Una 912 in the 1980s. Moreover, we realised that it was possible to take a guided tour of Hero P-821!

Sounds good!
The opportunity to go exploring around the interior of a Cold War era Yugoslav submarine proved far too tempting to turn down. Thus we made our reservations and took our places among a group of around eight people one afternoon.
Touring the Hero P-821 Submarine in Tivat.

Sladja channeling some Cold War vibes.
Our tour guide was a cheerful local chap, full of enthusiasm for the sub’s history. His English wasn’t too bad, but he spoke through a mask and had a thick Montenegrin accent, so some of the information got lost along the way.

Our guide taking a moment for some mask relief.
Given the sub’s cramped communal spaces and narrow walkways, he insisted that all tour members wear masks too — which was fair enough, no complaints. However, it didn’t take long for claustrophobia to kick in, thanks to the heat and the limited space to manoeuvre around the other participants.

Touring the Hero P-821 Submarine in Tivat.
Hero P-821 was built in 1967 in Split, Croatia, the lead vessel of a series of submarines known as the Hero Class. Classified as an electric diesel patrol-and-attack sub, its primary functions were coastal defence and surveillance operations in the Adriatic Sea.

In the submarine.
With its streamlined hull design and four bow-facing torpedo tubes (used for minelaying), she was a revelation of her time and the absolute pride and joy of the Yugoslav Navy.
When in Tivat…

Touring the Hero P-821 Submarine in Tivat.
With a length of just 50.4 metres, P-821 enjoyed a relatively compact size that allowed it to navigate coastal waters quietly and efficiently. During the thousands of drills it performed throughout the 1960s, 70s and 80s, the crew would often simulate attack scenarios in addition to practicing evasion techniques and carrying out tracking exercises.

Blending in.
Which all sounds like a very exciting time for P-821’s crew members. The thing is, the submarine never actually saw active conflict across its 25 year life span. Not a bad gig overall I’d say for those employed onboard.

The crew enjoying dinner onboard in 1983. Touring the Hero P-821 Submarine in Tivat.
After the breakup of Yugoslavia in 1991, Hero P-821 was soon decommissioned. Following a period of neglect, the sub was eventually restored to its former glory and placed on permanent exhibition in Porto Montenegro in 2011.

Touring the Hero P-821 Submarine in Tivat.
With our guide’s brief presentation over he gave us around fifteen minutes to explore the sub independently. Indeed there was little in the way of supervision and no strict rules in place regarding photography or things that couldn’t be touched.
Touring the Hero P-821 Submarine in Tivat.

Sub stuff!

Touring the Hero P-821 Submarine in Tivat.
A quick word on the baby sub that sits next to mama. Unfortunately we couldn’t get inside this one, but it was cool to get a quick overview of its story. Known as Una Class 912, this single-hull “midget” sub was created specifically as a vessel that could lay minefields. Furthermore, it made for a handy transporter to move crew members between larger submarines.

Una Class 912.
Both submarines sit outside the small but fascinating Naval Heritage Museum. Entry to the museum is 2 Euros per person, or 7 Euros pp in a combo ticket with a tour of P-821.

Touring the Hero P-821 Submarine in Tivat.
For the most part the museum is a display of Montenegrin maritime weapons, machinery and watercraft. It also presents some of the most memorable stories and characters from the country’s colourful maritime history.

Inside the Naval Heritage Museum.

A 40mm anti-aircraft gun manufactured by the former Swedish arms manufacturer Bofors.
Among the most impressive pieces in display, I liked this nifty looking R-2 Mala-class swimmer delivery vehicle. The model dates back to the 90s when the Croatian Navy used them for taking naval commandos into hostile waters for sabotage missions on enemy warships!

Touring the Hero P-821 Submarine in Tivat.
In between a cluster of fascinating machines, I also enjoyed examples of 1980s safety reminder art! Apparently these posters were staples inside military vessels, vehicles and workplaces where dangerous machinery was in use.
The Naval Heritage Museum.

Be careful! Etc.
From the various stories we read there is one that really stands out. It tells the tale of The Zagreb Destroyer, a formidable beast that was the first warship built in Yugoslavia. It entered service just as World War II broke out in 1939 and enjoyed an action-packed albeit short life.

The Zagreb Destroyer.
In April 1941 she was in the Bay of Kotor when it came under vicious attack from Italian fighter planes. Damaged but not quite down and out, the crew subsequently received word that the Yugoslav Armed forces were preparing to surrender and that everyone aboard should immediately abandon ship.

In the Bay of Kotor. Touring the Hero P-821 Submarine in Tivat.
This is precisely what most people aboard The Zagreb duly did. However, two officers by the name of Milan Spasić and Sergej Mašera decided they would rather go out with a bang. Unknown to the Italians, who were fast approaching, they had set off scuttling charges which resulted in huge explosions and the sinking of the ship. Sacrificing themselves in the process, both men posthumously received the Order of the People’s Hero.

Milan Spasić (left) and Sergej Masera.
On the top floor of the museum, in stark contrast to the tone of the military stuff, we checked out a small art exhibition focusing on the beauty of Montenegrin architecture and coastal landscapes.
Naval Heritage Museum.

Gayo Gallery.
Created by local artists, the pieces were on loan from the nearby Gayo Gallery — Montenegro’s first private art gallery, with a history of exhibitions dating back to 1989. A peaceful, reflective end to a fascinating afternoon.

Gayo Gallery.
Like this? Check out my many articles from across Montenegro.
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Touring the Hero P-821 Submarine in Tivat.





54 Comments
If only war was only a thing talked about in faint tones from old displays inside a museum. I have toured a few battleships and submarines and the tours are fascinating. But, somehow I can not help but think about the H— the sailors went through. Good that this sub never saw conflict. The submariner’s life would not be for me. Claustrophobia and being under water would do me in. Happy Sunday Leighton. Allan
Hey Allan. I’m with you about wishing war could be something that we only refer to in terms of history. Sadly we are long, long way from that with few signs of hope. I also wouldn’t have fared well as a submariner. In fact, the tour was about as long as I would want to spend cooped up in such tight spaces. Still, I really enjoyed touring my first submarine and would be open to seeing another one someday if the opportunity arises.
Fascinating – I’ve never been inside a submarine! The history was interesting too but I confess I prefer the art to the other displays 🙂
We also felt encouraged to come across the landscape and architectural art. The gallery definitely lightened the mood after all the Cold War stuff. Still, the sub and museum feel like essential parts of Tivat history, and sights that I suspect large swathes of beachgoers often neglect. Thanks for reading, Sarah!
An interesting thing to do, tour a submarine, not something I’ve come across before. Like the earlier comment, life in a submarine seems like it would be a claustrophobic torture, I’d feel trapped as soon as they closed the hatch. A tour like yours would be enough!
Totally agree, it was very cool to get inside a sub and have a nose around, but I’d certainly have no ambitions beyond that! Cheers Phil. An email on the way to you shortly.
Ok bud
I’ve never been inside a submarine, what a great thing to see. I mostly love the dive suit. It looks so clingy, how would you ever move underwater. Maggie
Ha ha, the dive suit is a magnificent, ridiculous thing isn’t it? As if it had been designed to perhaps drown someone. Thanks for reading about our tour of Hero P-821 Submarine, Maggie.
Fascinating Leighton. I’ve been inside numerous submarines around the world but they have always been moored up by the sea and never have I come across one let alone two on display in a city square!
Thanks, Marion. It was indeed quite the unusual sight when we first stumbled upon them. How interesting that you have toured several submarines. Where were they?
Interesting to find such a thing there. Kinda reminds me of the U-boats I stumbled upon in Hamburg. Not an everyday experience I suppose.
Yeah, fairly unique. Funny you mentioned U-boats, as I also saw a few in Liverpool but didn’t get to go inside. So this was a step further in that respect. Cheers for the read!
A bit of a memory test! Here goes, Tallinn Estonia. Darling Harbour Sydney. Gosport Hampshire. Bremerhaven Germany and Helsinki Finland. Possibly others that I can’t think of right now. I may only be 5’1″ but nevertheless found them all to have very cramped conditions for the submariners who were often at sea for months at a time.
An excellent array of locations.
How cool, my son is a submariner so I love the photos. He was on a nuclear fast attack sub. One time I was doing a seminar at the Bangor sub base in Washington State and I mentioned to a sailor that my son had been a submariner. He stopped me and said, “No sir, he IS a submariner, once you have your dolphins you always have your dolphins.” Obviously I am quite proud of him. Thanks for the great post.
Cheers Terry, I’m glad you enjoyed the read. I certainly didn’t expect to hear from a reader whose family member was (sorry IS) a submariner; that’s a fantastic contribution to the comment thread.
Never would’ve thought that there would be submarines in Montenegro, but apparently, there are! Although they’re massive, these submarines are still a lesser-known, off-the-beaten-path kind of site to check out, thereby being a “hidden gem” in the country. Very interesting history and the heroic sacrifices made that don’t often get talked about in history class…thanks for sharing a unique monument, Leighton!
It is a fairly unique sight, that’s for sure. There’s really nothing hidden or off-the-beaten-path about them though, they are literally parked right in the centre of town on a giant square. It would be a minor miracle if nobody bumped into them, although I wonder how many actually choose to take the tour. I’m thinking not many. Thanks for reading Rebecca!
Interesting journey back to Cold War days…….or do they still exist?
I guess some might call it The New Cold War.
It would be so interesting to tour the submarine, though I can definitely see why you felt claustrophobic – life on a submarine would not be for me!! Fascinating history and it’s always interesting learning more about Yugoslavia when visiting the Balkan region.
It seems like all readers are saying a big ol’ “no” to the prospect of life on a submarine. Well, everyone except Terry’s son (assuming he ever reads this). Thanks for stopping by Hannah.
That was an adventure and your photos are great as usual. Your are right they are pretty conspicuous but my guess is that with “hidden gem” they mean that not many tourists come see them. I’ve toured a Swedish submarine (in Sweden) and an American submarine (in the US). It is easy to get claustrophobic but I think I could have handled it, but I don’t know.
Perhaps just saying “underrated” would have worked better, but I get the point. I wonder if the claustrophobia aspect of life on a sub is something that most of us could break once we’d gotten through the first week. I’m not sure. Thanks for the read, Thomas.
So interesting! The history is compelling and we even learned a little about this when we visited Croatia last year. Unlike my stepson, that Terry mentioned in his comment, I don’t think I could spend more than a few minutes in a submarine. 😳 Excellent post, Leighton!
Thanks Tricia! I was pleasantly surprised to read Terry’s comment, and then again to read Anna’s comment further on in the thread. Nothing “sub” standard about my readers. Sorry.
There’s no way I could ever survive on a submarine. I need sunlight and to be able to see the sky. But I have toured one before and it was fascinating. Thanks for this tour of another. The museum sounds interesting as well.
No surprise to hear that a submariner’s life wouldn’t be for you Diana. I can picture you down in the depths looking quite glum dreaming of an open mountain hike. Thanks for taking the tour with us 🙂
[…] May 19, 2025May 19, 2025 Touring the Hero P-821 Submarine in Tivat. […]
Thanks for the re-post.
My father in law was high up in the Peruvian navy and would go pick up subs in different countries and drive them back to Lima. My husband would go for spins on the subs out of Lima when it was “bring your kid to work day” lol. I’d never go in a sub, way too claustrophobic for that!
Wow Anna, another amazing contribution to the thread from a reader with a submariner relative. Taking a sub ride as a kid and having a father high up in the navy must have been quite the thrill. Cheers for the read!
a very interesting report leighton and a privilege i would suggest to tour an authentic cold war era sub. i can almost taste the claustrophobia creeping off the page in several of your photographs. not for the fainthearted. i am with you on the the definition of off the beaten path, it doesn’t fit this attraction at all. the term hidden gem however is a blurry concept as some people use it to describe something that is overlooked. have never understood why as that bears no relevance at all to being “hidden”. the english language loves to trip us all up sometimes.
Hey Stan, the English language indeed, a trap around every corner. It was a privilege to tour my first submarine, especially one that lived through (albeit gently) the Cold War era. Thanks for taking the tour with us!
A submarine is an ideal place to instil fear, as its operating conditions defy the human metabolism, land animal that we are.
I think, by their very nature, there is indeed a sinister feel to submarines and fear is probably a part of that. I would also throw in claustrophobia, isolation, low light, silence, chilly temperatures and a dampness in the air. Unspoken traces of psychological strain. As others have suggested, I’m glad to have taken a short tour rather than a 3-month voyage.
What an incredible dive into Cold War naval history! Loved how you brought the Hero P-821 to life with humor, detail, and a real sense of place. The mix of military history, quirky discoveries, and personal moments made this a fascinating read. Definitely adding Tivat to the list!
Thanks for reading about our tour of THE Hero P-821 Submarine in Tivat!
What a cool piece of history to explore around! I always love going through old ships and submarines, but at the same time glad that I was never one to live in such tight quarters. The Naval Heritage Museum looks really interesting too. Years ago I was in an art history class and we were talking about wartime propaganda art and the emotionally targeted messaging that they conveyed. Even not being able to read the posters there in the museum, you definitely get the idea that they are using the same kind of tactic. Great post Leighton 🙂
Absolutely! You get a stark sense of the fear and urgency that they were trying to instil in people. “You see that machine you use every day at work? IT’S GOING TO KILL YOU!!!!” Yikes. The museum, although small, has a cool exhibition that helps to put the sub tour into context. Thanks for following my Tivat series Meg! 🙂
A unique blog post Leighton as I have often come to expect from you. I would love to tour a sub especially one with this kind of history attached. Seems like the comment thread is nearly unanimous save for Terry’s son and Anna’s father-in-law: a quick look would be more than enough!
Hey James! Yeah, not much love for sub-life, which is hardly surprising I guess. Amazing though that two readers have family members who are / were submariners. Thanks for checking in.
What a fantastic read — though I must confess, what truly captivated me was the unexpectedly adorable familial framing of the submarines as a “mum and daughter duo.” It’s a disarmingly charming anthropomorphism for two steel leviathans bristling with torpedo tubes! I can’t help but wonder if the maternal pair ever argued about sonar settings or the best way to navigate a fjord. 😄⚓️
Maybe this could be developed into a children’s book. ‘At Home with the Subs’. It follows Mama, the main character (Periscope Pam), in her efforts to train her little one in the art of fending off boredom during the Cold War. For the TV series I’d like to see Olivia Coleman in the main voice role.
🤣
Oh gosh, wearing a mask inside a submarine sounds brutal given the poor ventilation and cramped quarters. I can’t even imagine what it would be like to work and live on one. Love the shots of you guys testing out the equipment.
Thanks Linda, we tried to have fun with it. It wasn’t easy to get those shots due to the group all trying to manoeuvre around each other in such limited spaces. Cheers!
Wow! Submarine tour ! I never did ! But it would be a great experience. Well shared 💐
Thanks for reading and commenting Priti! 🙂
Your welcome! 🙏🏼
Very cool! Thank you for taking us on your tour!! 💯
Cheers!
appreciate the tour