If you’re visiting Krk and looking for a unique way to see the marine life and enjoy spectacular coastal scenery, the Yellow Semi-Submarine Tour offers a charming, family-friendly experience with plenty of authentic charm. With a solid 4.8 out of 5 stars from 54 reviews, this tour combines comfort, accessibility, and fun, making it a popular choice for travelers seeking a relaxing yet fascinating adventure.
What we love about this experience are three things: First, it’s a cost-effective way to explore underwater life without diving gear or swimming. Second, the views of Krk’s historic city walls and cathedral from the water are simply stunning, providing a different perspective of the island’s rich history. Lastly, the friendly and knowledgeable staff seem to make the tour extra memorable, especially for families with kids or couples looking for a romantic outing.
The main consideration? The semi-submarine does not dive — instead, it’s a submerged cabin with large, tempered glass windows that sit 1.5 meters below the surface. So, if you’re hoping for a traditional underwater dive or snorkeling, this might not satisfy that craving. However, for those wanting a comfortable, safe way to observe marine life and enjoy scenic views, it hits the mark perfectly.
This tour is ideal for families, couples, or anyone curious about marine life who prefers a relaxed, guided experience. It’s also a good choice for travelers with limited mobility who might find snorkeling or diving challenging, thanks to the easy boarding and air-conditioned cabin.
Good To Know

- Affordable Experience: At $18 per person, it provides an accessible way to see underwater life without extra gear or effort.
- Comfortable Setup: The air-conditioned underwater cabin with large windows makes the experience pleasant, even during hot summer days.
- Flexible Tours: Choose between a lively daytime fish-feeding tour or a romantic, illuminated night tour with LED lights.
- Scenic Views: You’ll enjoy sights of Krk’s historic city walls, famous cathedral, beaches, and coastline from a new angle.
- Family-Friendly: The tour is suitable for children and adults alike, and reviews highlight it being fun for all ages.
- Authentic Marine Encounters: Expect to see schools of fish, sea urchins, and other marine animals, often praised for their abundance and activity.
The Itinerary and What to Expect

The Krk Yellow Semi-Submarine Tour lasts about 30 minutes, making it a quick yet engaging excursion that fits well into a day of exploring the island. The vessel doesn’t actually dive but features a submerged cabin that’s 1.5 meters below the surface, giving you a glimpse into the underwater world without getting wet.
Boarding and Departure: Once you arrive at the starting point (which varies depending on your booking), the crew helps you settle into the semi-submarine. You’ll appreciate the air conditioning, especially during the warm Croatian summer, as you prepare for the short trip.
The Route: The boat heads to Redagara Bay, a picturesque spot with clear waters, historical surroundings, and great photo opportunities. As the semi-submarine approaches this area, it’s time to enter the underwater cabin. The large tempered glass windows on each side provide unobstructed views of the marine environment.
Underwater Sightings: Expect to see schools of fish, sea urchins, and other small sea creatures that thrive around Krk’s coast. Reviews mention how many guests found the marine life lively and visible through the glass, with one traveler noting, “We saw a lot of fish! The staff were really friendly!” The view out of the windows is complemented by the scenic backdrop of Krk’s ancient city walls and cathedral, seen from the water.
Night Tour Option: For a more romantic vibe, opt for the evening tour, which features LED lights illuminating the water, attracting different marine creatures and creating an enchanting atmosphere. Several reviewers appreciated the dusk or nighttime viewing as being particularly special.
Return and Photo Opportunities: After approximately 30 minutes, the vessel heads back to the port. This moment is perfect for snapping some photos of the coastline, the city, and your underwater adventure to share with friends and family.
Find more activities and experiences we've covered in Krk.
What Makes This Tour Stand Out?

Views of Krk’s Historic City Walls and Cathedral: From the water, you’ll see these landmarks from a perspective few get to experience. Many reviews mention how the sights of the old city walls and the cathedral add a special historical charm to the trip.
Marine Life Abundance: Guests consistently note how many schools of fish and sea urchins they encountered. One reviewer shared, “It was really nice what we saw. The leader was kind,” highlighting the friendly atmosphere created by knowledgeable guides.
Comfort and Accessibility: The air-conditioned cabin and large windows make the experience comfortable, especially on hot days. The boat doesn’t require any swimming or diving skills, making it accessible for most.
Flexible Options: Whether you prefer the lively daytime fish feeding or the serene glow of LEDs at night, the tour offers a choice to match your mood. The night tour is especially praised for its ambiance and photo opportunities.
Family Appeal: Children seem particularly captivated by the marine life and the novelty of sitting inside a semi-submarine. Several reviews mention how kids enjoyed standing at the helm with the captain, which adds a fun, interactive element.
Analyzing the Value

At just $18 per person, this experience is a bargain for what it offers. Unlike larger boat tours that focus on multiple island stops or snorkeling excursions, this is very much a focused, intimate look at underwater life paired with stunning coastal views. It’s perfect for travelers who want a short, engaging activity that doesn’t require extra equipment or physical effort.
The 30-minute duration means it fits easily into a busy day of sightseeing without feeling rushed or dragging on. For the price, you get a comfortable, guided trip with expert staff who clearly enjoy sharing their knowledge. The inclusion of air conditioning and large glass windows adds to the sense of value and comfort.
Who Should Consider This Tour?

This tour is perfect for families, especially those with young kids who find snorkeling or diving intimidating. It’s also great for couples seeking a romantic, low-key activity with memorable scenery and marine encounters. For travelers with mobility concerns, the easy boarding process and seated experience make it an accessible option.
If you’re a history enthusiast, you’ll appreciate the views of Krk’s ancient city walls and cathedral, which add a cultural dimension to the underwater sights. Those wanting a quick, fun, and affordable tour that balances scenery, marine life, and comfort will find this experience well worth the price.
More Great Thing To Do NearbyThe Sum Up

The Krk Yellow Semi-Submarine Tour offers a charming, easy-to-enjoy glimpse into the underwater world of the Adriatic, combined with scenic views of Krk’s historic coastline. It’s a great value for a family-friendly activity that doesn’t sacrifice comfort or authenticity. The friendly guides and lively marine life sightings make it a memorable experience that often exceeds expectations.
Travelers looking for a relaxed, engaging, and visually stunning excursion will find this tour hits the sweet spot. It’s especially suitable for those wanting a safe, accessible, and affordable way to explore Krk’s waters without the need for swimming or diving.
If you’re after a short yet immersive marine adventure with plenty of photo opportunities and a touch of history, this semi-submarine tour deserves a spot on your itinerary.
FAQ

How long is the tour?
The tour lasts approximately 30 minutes, making it a quick but satisfying experience.
Does the semi-submarine actually dive underwater?
No, the vessel does not dive. Its underwater cabin is submerged 1.5 meters below the surface, providing views through large glass windows.
Is the tour suitable for children?
Yes, reviews highlight how children enjoy seeing the fish and exploring the underwater environment from inside the cabin.
What can I see during the tour?
Expect to see schools of fish, sea urchins, and other marine animals, especially around Redagara Bay.
Can I choose between day and night tours?
Yes, you can opt for a day tour with fish feeding or a night tour illuminated by LED lights for a different experience.
Is the tour accessible for people with limited mobility?
The boarding process and seated setup make it accessible for most travelers, but it’s best to check specific requirements with the provider.
Are food and drinks included?
No, food and drinks are not included and are not part of the tour. You might want to bring water or snacks if needed.
Whether you’re a marine enthusiast, a history buff, or simply looking for a relaxing coastal activity, the Krk Yellow Semi-Submarine Tour offers a delightful way to experience the island’s waters. With friendly guides and a cozy underwater cabin, it’s a small adventure that creates big memories.
You can check if your dates are available here:More Tours in Krk
More Tour Reviews in Krk
- Krk: Boat Trip to Rab & Pag with Sightseeing & Swimming
- Krk: Golden Bay, Blue Cave, & 4 Islands Cruise
- Krk : Sailing along the coasts of island Krk and Plavnik
- Krk: Sunset Boat Tour with wine, high chance of dolphins
- Krk Island: Half-Day Boat Trip to Five Islands
- Krk: Golden Beach and Blue Cave Cruise with Welcome Drink
Looking for something different? Other Krk activities we've written about
- Krk: Boat Trip to Rab & Pag with Sightseeing & Swimming
- Krk: Golden Bay, Blue Cave, & 4 Islands Cruise
- Krk : Sailing along the coasts of island Krk and Plavnik
- Krk: Sunset Boat Tour with wine, high chance of dolphins
- Krk Island: Half-Day Boat Trip to Five Islands
- Krk: Golden Beach and Blue Cave Cruise with Welcome Drink
- Krk: Underwater Semi-Submarine Adventure
