SemiSubmarine Island Krk

Semisubmarine Tour on Krk Island: A Unique Marine Adventure for All Ages

The island of Krk, often dubbed the “Golden Island” due to its rich history, stunning natural beauty, and cultural heritage, continues to surprise and enchant visitors with a wide range of activities. One of the most captivating and family-friendly attractions that has gained popularity in recent years is the semisubmarine tour on Krk — a unique marine adventure that offers an unforgettable way to explore the underwater world of the Adriatic Sea without getting wet.

Keep reading and find out everything you need to know about taking a semisubmarine tour on Krk Island — what to expect, where it departs from, how it works, and why it’s a must-do experience during your stay on this beloved Croatian island.

What is a Semisubmarine?

A semisubmarine, sometimes called a “glass-bottom boat” or “semi-sub”, is a specially designed vessel that combines the experience of sailing on the sea surface with underwater viewing capabilities. Unlike a real submarine, a semisubmarine does not dive completely underwater, but it does have a submerged lower deck equipped with large panoramic windows below sea level.

This clever design allows passengers to observe marine life and underwater landscapes from the comfort of a pressurized, air-conditioned cabin while remaining safely above water. The upper deck remains above the surface, offering traditional sightseeing, while the lower deck is fully immersed, providing a front-row seat to the secrets of the sea.

Where Can You Take a Semisubmarine Tour on Krk Island?

Several towns and resorts on Krk Island offer semisubmarine tours, with the most popular departure points being:

• Malinska
• Krk Town (Grad Krk)
• Njivice
  

Each location offers slightly different underwater scenery and routes, but all are equally spectacular in showcasing the beauty of the Adriatic Sea.

What Can You Expect?

1. Boarding and Departure

Most tours begin with a warm welcome by the crew, followed by a short safety briefing. The semisubmarine usually departs from a harbor and begins with a scenic cruise along the coastline.

2. Underwater Exploration

Once the boat reaches deeper waters near interesting reef or rocky formations, passengers are invited to descend to the submerged cabin. Through the large glass panels, you’ll be able to observe:

• Colorful fish species (wrasses, sea breams, gobies)
• Sea urchins, starfish, and other benthic creatures
• Rocky sea beds and underwater plant life
• Occasionally, jellyfish or even octopus
• Shipwreck remains in some areas (especially around Punat or Krk town)
  

The calm and clear waters around Krk Island offer excellent visibility, especially during spring, summer, and early autumn.

3. Guided Commentary

Many semisubmarine tours include multilingual audio or live commentary, explaining:

• Local marine biodiversity
• Geological features of the seabed
• Historical and cultural facts about the area
• Environmental efforts to protect the Adriatic Sea
  

4. Panoramic Views from the Upper Deck

Once you’ve explored the underwater world, you can return to the open-air deck to enjoy panoramic views of Krk’s stunning coastline, old stone towns, and nearby islands.

Duration and Pricing

• Tour Duration: Most semisubmarine tours last between 30 minutes and 1 hour, making them ideal for families with children or visitors on tight schedules.
• Ticket Price: Prices typically range from 10 to 20 EUR per person, with discounts for children, groups, or families. Some operators offer private tours or evening/night rides for a slightly higher fee.
  

Why Choose a Semisubmarine Tour on Krk?

1. A Unique Way to See the Sea

Unlike snorkeling or scuba diving, semisubmarine tours allow everyone — regardless of swimming ability — to explore the sea. It’s perfect for small children, elderly visitors, or anyone who prefers to stay dry.

2. Family-Friendly and Educational

Kids absolutely love the experience of “diving” into the sea without leaving their seat, and the tours are both fun and educational, especially with guided commentary.

3. Ideal for Any Weather

The semisubmarine’s covered and air-conditioned interior makes it a great option even on windy or slightly rainy days when beach activities aren’t ideal.

4. Great Photography Opportunities

The combination of above-water and underwater views offers countless opportunities for photos and videos, making it easy to capture memories of your adventure.

Evening and Night Tours

Some operators on Krk Island also offer evening or night tours using special underwater lights that attract nocturnal sea creatures and provide a truly magical experience. The illuminated seabed becomes a stage for glowing jellyfish and curious fish, while the silence of the night adds to the sense of mystery.

Eco-Friendly Tourism and Marine Awareness

Many semisubmarine operators emphasize sustainable tourism practices. The boats are usually low-emission and designed to avoid damaging the seabed. Some even collaborate with marine conservation organizations to educate passengers on how to protect the Adriatic Sea, reduce plastic use, and support local biodiversity.

Tips for an Unforgettable Semisubmarine Tour on Krk

1. Choose the Right Tour: Opt for the tour of the underwater park and mermaid show, or the classic tour for a shorter, more intimate experience. Night tours offer a unique perspective with underwater lighting.
2. Book Early: Especially during peak season, as tours sell out quickly.
3. Dress Appropriately: Bring a light jacket for the air-conditioned cabin and sunscreen for the deck. Avoid heavy bags, as space in the cabin is limited.
4. Timing: Morning tours often have clearer waters, while evening tours offer a romantic ambiance. Avoid windy days for better underwater visibility.
5. Photography: Bring a camera or smartphone for deck views and underwater shots (though glass reflections may affect photo quality).
6. Manage Expectations: The underwater park and fish-feeding enhance the experience, but marine life may be less diverse than in tropical regions.
7. Combine with Other Activities: Pair the tour with a visit to Krk’s Frankopan Castle, a beach day at Vela Plaža in Baška, or a wine-tasting tour in Vrbnik for a full day of exploration.
   

Final Thoughts

Whether you’re traveling solo, as a couple, with children, or in a larger group, a semisubmarine tour on Krk Island is a delightful and accessible way to experience the hidden beauty of the Adriatic Sea. Offering the thrill of underwater discovery combined with the charm of a coastal cruise, it’s one of the most engaging and enjoyable activities available on the island.

So, the next time you find yourself on Krk, step aboard a semisubmarine and discover a whole new world — just beneath the waves.

If you need help organising your activities or booking the best tours to explore the island and it’s surroundings, feel free to contact us. If you need a place to stay, check out our selection of accommodation on the island of Krk.