Reviewed · KOTOR TOURS
Kotor Red Semi-Submarine Tour: Underwater Cabin Family Adventure
Kotor Bay is already a wow. This semi-submarine tour adds a second angle, you get the bay views on top, then you go below to watch underwater life through big bullet-proof glass windows. It is a simple one-hour outing that feels like a small adventure, not a long, exhausting tour day.
I love that it mixes two kinds of sightseeing in one ride: the panoramic look at the Bay of Boka and Old Town from the upper deck, plus that rare inside look at the water below. I also like that the ride stays comfortable, with air-conditioned cabin comfort, cold water, and shade on deck. The main drawback to keep in mind is that underwater visibility can be hit or miss, so if you are expecting tons of fish every time, plan to enjoy this as a bay and glass-window experience first.
Key points to know before you go

- Four large bullet-proof glass windows on both sides make the underwater cabin the star attraction
- Top deck views cover Kotor Bay, with glimpses of the Old Town shoreline
- Shade on deck, cold water, and air-conditioning help on hot days and keep kids comfortable
- Small group size (max 14) keeps the tour feeling calm, not chaotic
- Good weather matters, and poor underwater visibility can change what you see
- English is standard, since the skipper also acts as your guide
Why this Kotor semi-submarine is such an easy win

This is one of those tours that works even if you do not want a lot of walking. You show up, step onto a specially outfitted marine vessel, and in about an hour you get two different perspectives of Kotor Bay. For kids, it has that magical factor of seeing the world change when you go from above water to inside the cabin.
For adults, it is also a practical win. Kotor Bay is dramatic from the shore, but the views from a moving deck give you a sense of scale, from the cliffs and shoreline to the little villages along the water. And because you are on a boat, you get photos you just cannot replicate from a viewpoint.
The tour is also priced like a value add, not a luxury splurge. At $28.47 per person, it is affordable enough that you can still build the rest of your day around it.
A few more Kotor runs worth a look
- Kotor: Swim in the Blue Cave + Lady of the Rocks Tour
★ 4.7 · 3,462 reviews - Kotor: Blue Cave, Submarine Base and Lady of the Rocks Tour
★ 4.9 · 2,869 reviews - Kotor: Blue Cave Swim Stop, Lady of the Rocks & Submarine Base
★ 5.0 · 1,914 reviews
The upper deck cruise, Bay of Kotor views plus Old Town vibes
The first part is spent above the water, cruising the Bay of Kotor with open-deck views. You will be looking out at the curve of the bay and the coastline that frames Kotor. This is when you get your best sense of why Kotor is famous, those long cliff lines and the way the Old Town sits near the water.
You also pass by or line up with smaller spots along the shore like Muo, Prcanj, and Dobrota. These are the kinds of places that make the bay feel lived-in, not just scenic. As you glide past, you get glimpses that can help you connect the names you might see later as you walk around Kotor.
What I like about the top-deck time is that it is a breather. You do not need to look down at a map or keep track of a route. You just focus on the views, take photos, and let the bay do the talking. There is shade on deck, which helps when the sun is strong.
A small consideration: the top deck is great for photos, but wind can make it feel cooler than you expect. If you get even a bit chilly, bring a jacket, especially if you are booking later in the day.
Going below: the underwater cabin and the four glass windows

Then comes the part kids remember. You go into the underwater cabin, where the boat’s design features four big bullet-proof glass windows on both sides. This is not a quick peek. You get time to settle your eyes on the water and scan for movement.
You should come in with the right mindset. The experience is more about the thrill of seeing from inside a glass-walled underwater cabin than it is about guaranteeing that you will see a parade of marine life. In fact, some people end up seeing more above water than below, and the underwater scene depends a lot on conditions.
That said, when visibility is decent, it is genuinely fun to watch the water layer-by-layer as the boat moves. You will likely spend the time staring at the glass, then realizing the boat has drifted just enough for new things to come into view. It can also feel a little like the world is paused, in a good way.
One practical tip: wear sunglasses if you have them, and keep your camera ready. The lighting inside can make it a bit tricky, but the views are still photo-worthy, especially if the water is clearer.
Comfort details that actually matter on a small boat

This ride is designed to keep you comfortable in Kotor Bay conditions. The tour includes air-conditioned cabin comfort and cold water, plus shade on deck while you are above. That combo is not just a nice bonus. It changes how you experience Kotor, especially if you are traveling with kids or if the day is hot.
Also, this kind of tour can feel breezy even when the air is warm. If you get chilly easily, packing light is not the right move. Bring something thin but warm, like a light jacket, so you can layer on and off.
If you plan to hang out in Kotor before or after, you will be glad you did not overpack. Most of what you bring is about comfort and sun protection.
Something slower, once Kotor is settled:
- From Dubrovnik: Montenegro Day Trip with Boat Cruise
★ 4.6 · 1,331 reviews - From Kotor: Boat to Blue Cave & Lady of the Rocks &Submarine Base
★ 5.0 · 1,104 reviews - Kotor: Fast-Track Venetian Perast & Our Lady Of The Rocks
★ 4.7 · 1,009 reviews - Kotor: Blue Cave & Our Lady of The Rocks & Submarine Base
★ 4.9 · 936 reviews
Value for money: $28.47, and what you do get

At $28.47 per person, this is a budget-friendly activity with a clear theme: bay views plus underwater cabin time. You are not paying extra for the main attractions. The price includes all fees and taxes, fuel, a licensed English-speaking skipper who also acts as your guide, drinking water, shade on deck, and the semi-submarine ride with the underwater cabin experience.
Alcohol is the only obvious extra. Alcoholic beverages are not included, though you can buy them before the start of the journey.
Here is how I think about the value. If you only care about one thing, like scenery alone, you might find cheaper ways to see Kotor Bay from shore. But if you want a kid-friendly, weather-dependent experience that adds a second viewpoint from below the surface, this price is fair.
Also, the tour is short. At about one hour, it does not steal a whole chunk of your day. You can fit it between Old Town wandering, a meal, or a different bay activity.
Timing and visibility: how to set your expectations

Underwater visibility is the big variable here. The tour works only during good weather conditions, and if it is canceled due to poor underwater visibility or bad weather, you can choose a different date or get a full refund.
So what should you do with that information? Plan like this:
- Expect the underwater cabin to be cool and novel even if you do not see tons of wildlife.
- If you are hoping for the clearest water, choose your slot with the best likely conditions, and do not book only for convenience.
There is also a pattern in how people describe the experience, some say the afternoon works well for their day. Others note that later timing can mean murkier water. Since the tour depends on conditions, you cannot control it, but you can avoid building your whole trip around underwater wildlife as a must-see.
What to bring for a smooth ride

You will be most comfortable if you pack for sun, light chill, and photo time. I recommend you bring:
- Sunglasses, sun hat, and sunscreen
- A camera (or phone with enough battery)
- Comfortable shoes or sandals
- A jacket for chilly weather
- Swimwear, plus a towel and flip flops if you want to be ready for any water-related moments
One more small advice, wear what you can re-wear. You are not going on a full day trek. This is a boat ride with short, distinct phases.
Where you meet the boat, and how to not lose time

Meet at Kotor Boat Tours & Blue Cave – Our Lady of the Rocks & SubmarinePark, Slobode 1, Kotor 85330, Montenegro. The tour ends back at the same meeting point, so you do not need to plan a separate return.
Show up early. You are advised to be at the meeting spot at least 30 minutes before the tour. That matters on busy days around the park area, and especially if you are driving, since traffic and roadworks can slow things down.
Good news for logistics: it is listed as near public transportation. If you are staying in Kotor or nearby, getting there should not be a major headache.
Small group size and the skipper-guide vibe
Each booking can include up to 14 travelers, and there must be at least 2 people to run the tour. That small cap tends to keep the mood calmer, and it also helps when you want to ask a question about what you are seeing.
The licensed English-speaking skipper is also your guide. In other words, you are not stuck with a script you cannot connect with. You get onboard guidance while you cruise, which helps make the time above and below feel more intentional.
From real-world experience, this matters with kids. The difference between a boat ride that feels like watching time pass and a boat ride that feels like an adventure is often the person talking to you and keeping everyone engaged.
Who should book this Kotor Red semi-submarine tour
This is best for:
- Families with kids who want a novelty activity without heavy walking
- Couples who want a short, scenic plan that adds a different view of the bay
- Anyone who likes a mix of easy sightseeing and a hands-on feeling, even without getting wet
It is also a good choice if you want something that does not require advanced physical effort. Most people can participate, and the tour is designed around comfort like shade, cold water, and air-conditioning.
But I would not plan this as your only underwater viewing option if that is your top goal. The underwater part is real, with those large windows, yet conditions decide what you see.
Should you book this tour in Kotor?
Yes, if you want a short, kid-friendly Kotor Bay activity with real variety, top-deck views plus a below-water cabin experience. The included value is solid, and the underwater glass windows are the kind of novelty that turns a simple afternoon into something memorable.
I would pass or switch your expectations if you are chasing guaranteed underwater wildlife. This tour depends on weather and visibility, and in some conditions the below-deck viewing can feel limited. Even then, the bay views from above are still a big part of the payoff.
If you can time it for conditions that look best and you show up ready with sun protection and a light jacket, you will probably come away thinking the price was fair for what you got.
Newest reviews from Kotor
- Kotor walking tour and Jaz beach – private tour★ 5.0 · 3 reviews
- NP Biogradska Gora and Canyon Moraca (Private tour)★ 5.0 · 3 reviews
- Special Montenegro: Lipa cave – Njegoš’s Mausoleum – Njeguši village – Cetinje★ 5.0 · 3 reviews
- Kotor: Private Blue Cave + All destinations inside Kotor Bay★ 5.0 · 3 reviews
- Wild Beauty of Montenegro – Private Tour★ 5.0 · 3 reviews
- Kotor: Blue Cave & Swimming, Our Lady of The Rocks, Mamula★ 5.0 · 3 reviews
- Our Lady of the Rocks two hours private tour★ 5.0 · 3 reviews
- Kotor: Old Caravan Trail Guided Hike with Cheese Tasting★ 5.0 · 3 reviews
Kotor Tours, compared.

Swim in the Blue Cave + Lady of the Rocks Tour
Read our review →
Blue Cave, Submarine Base and Lady of the Rocks Tour
Read our review →
Blue Cave Swim Stop, Lady of the Rocks & Submarine Base
Read our review →
From Dubrovnik: Montenegro Day Trip with Boat Cruise
Read our review →
Boat to Blue Cave & Lady of the Rocks &Submarine Base
Read our review →
Fast-Track Venetian Perast & Our Lady Of The Rocks
Read our review →

