If you’re hunting for a different way to explore Croatia’s stunning coastline, the Omi Semi-Submarine Underwater Adventure might catch your eye. It promises a chance to see marine life and a WWII shipwreck without getting wet, all from the comfort of a glass-enclosed vessel.
What we love about this experience is its affordability—at just $16 per person, it offers a surprisingly intimate and fascinating glimpse into the underwater world. Plus, the chance to see a sunken ship from the WWII era and spot fish, octopuses, and jellyfish makes it an appealing choice for families and curious travelers alike. The underwater lights, especially at night, add a magical touch, illuminating the sea like a scene straight out of a movie.
One potential consideration is the brief duration—only about 30 minutes—which might leave some wishing for a longer adventure. Also, the experience doesn’t include diving, so if you’re looking for a full underwater exploration, this isn’t for you. But for those wanting a quick, accessible, and family-friendly outing in Dalmatia, this tour hits the sweet spot.
This tour is best suited for travelers seeking a relaxed, accessible introduction to Croatia’s marine scenery. It’s especially good for families with kids, first-time visitors, or anyone curious about history and sea life without the commitment of a full diving trip.
Good To Know

- Affordable price point makes it accessible for most travelers.
- Unique experience of viewing a WWII shipwreck without diving.
- Family-friendly and suitable for all ages.
- Night viewing with underwater lights enhances the ambiance and visibility.
- Intimate group size (max 12 people) offers a personalized experience.
- Limited duration means it’s a quick trip, ideal for fitting into a busy schedule.
What You Can Expect on the Tour

The adventure begins at the new port in Omi, where you’ll board a vessel equipped with a glass-enclosed underwater cabin. The boat itself is small and cozy, accommodating up to 12 guests—so expect a more personal and less crowded experience.
The 30-minute ride takes you directly to the site of a WWII shipwreck, with parts of the vessel just half a meter below the sea surface and others buried under the sand. It’s a fascinating piece of history that’s accessible without any diving, and the guide will point out key features. Keep in mind that the wreck is not a sprawling ship but rather a significant relic partially buried and resting peacefully beneath the waves.
As you glide over the site, the underwater glass allows for clear views of the marine life. According to reviews, you can expect to see fish, octopuses, and jellyfish—though the clarity of water can vary. One traveler noted a desire for clearer water and more fish, but most agree that the shipwreck alone makes the trip worthwhile.
In the evening or at night, the underwater lights really come into their own, creating a captivating glow that enhances both the visibility and the atmosphere. Several reviewers have expressed that this adds a special, almost surreal feel to the experience, especially after sunset.
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The Experience from the Guides

While specific guide names aren’t provided, reviews mention knowledgeable guides who make the experience more engaging. They are reported to be friendly and clear, sharing insights about the shipwreck and the marine environment. The small group size means you can ask questions and get personalized attention, which enhances the overall enjoyment.
The Value for Money

At $16, this tour is a bargain for what it offers. The manageable price makes it an attractive option for travelers on a budget or those looking to add a quick, memorable activity to their day. As one reviewer put it, “It’s a great experience for the price,” and it’s especially appealing for families or groups wanting an easy, hassle-free outing.
However, it’s worth noting that food and drinks are not included, so plan accordingly if you’re hungry afterward. Since the tour is quite short, some might consider it an appetizer to a larger day of exploring Dalmatia.
Practical Details and Tips

- The tour lasts approximately 30 minutes, which makes it easy to slot into a busy sightseeing day.
- Booking in advance is recommended, given the small group size and popularity.
- The vessel does not dive; it stays on the surface, with the glass cabin providing all the views.
- The experience is available in English, making it accessible for most travelers.
- You can reserve your spot and pay later, which is perfect if you’re juggling multiple activities.
- Cancellation policy allows for full refunds if canceled up to 24 hours beforehand.
Authentic Traveler Insights

Many reviews highlight the personalized, intimate vibe of this tour. A traveler named “GetYourGuide traveler” called it “Alles perfekt,” emphasizing a flawless experience. Others appreciated the value for money, with one describing it as “really worth experiencing at least once.”
On the flip side, some guests expected more vibrant marine life or clearer water. One reviewer mentioned, “Expected clearer water and more fish,” which suggests that water conditions can vary and could influence visibility. Still, the shipwreck remains a highlight and provides that perfect photo opportunity.
A notable point is that some travelers found the experience not suitable for claustrophobic guests due to the enclosed nature of the semi-submarine. The rocking motion and still air might also make some feel uneasy, especially if they are prone to seasickness or anxiety.
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Who Will Love This Tour?

This adventure is a fantastic choice for families with children, offering a safe, engaging, and educational experience. It’s also ideal for first-time visitors to Dalmatia who want a taste of both history and marine life without committing to a full boat or diving trip.
Travelers interested in history will find the shipwreck particularly intriguing, while nature lovers will enjoy the chance to spot various sea creatures. The night lights add a special touch, making it suitable for sunset or evening outings.
Final Thoughts

The Omi Semi-Submarine Underwater Adventure offers a fun, affordable way to glimpse Croatia’s marine environment and history. Its small group size, reasonable price, and family-friendly vibe make it a solid choice for a quick trip that adds a little adventure to your day.
While it’s not a comprehensive diving experience or a long marine exploration, it excels at providing a safe, accessible, and memorable introduction to the underwater world. The views of the shipwreck alone make it worthwhile, especially if you’re interested in history or just want a novel way to see the sea.
If you’re looking for a light-hearted, visually stunning activity with a touch of history, this tour is worth considering. Just keep expectations in check regarding water clarity and marine life—sometimes nature is a bit shy.
FAQ
Is the semi-submarine suitable for children? Yes, it’s family-friendly and safe for all ages. The vessel is designed for comfort and safety, making it ideal for kids and adults alike.
Does the tour include diving or snorkeling? No, the semi-submarine ride stays on the surface and does not involve diving or snorkeling.
How long is the tour? The entire experience lasts about 30 minutes, making it a quick activity that can fit into a larger sightseeing schedule.
Can I book the tour in advance? Absolutely. Booking ahead is recommended to secure your spot, especially since the vessel only accommodates 12 people.
What should I bring? Since food and drinks aren’t included, you might want to bring water or snacks for before or after the trip. Also, a camera or phone for photos of the shipwreck and marine life.
Is the water clarity good enough to see the marine life clearly? Water conditions can vary; some travelers wish for clearer water and more fish, but most agree that the shipwreck itself offers a memorable sight.
To sum it up, the Omi Semi-Submarine Underwater Adventure offers a budget-friendly, family-oriented glimpse into Croatia’s underwater environment. It’s perfect for those seeking an easy, safe, and visually engaging activity with historical intrigue. While it might not satisfy divers or adventure seekers, it provides just enough magic and history to make your day memorable.
You can check if your dates are available here:More Tour Reviews in Omis
- Omi: Beach & Fort Private Tour- ideal for cruise guests
- Omi: 2-Person Buggy Tour with Lunch and Wine Tasting
- Omi: 2-Hour Cetina River Boat Tour and Nature Park Visit
- Omi: Free Climbing gear, Daily Rental
- Omi, Croatia: Rent a Kayak on the Cetina River
- Omi: Cetina River Canyon Glass Boat Tour to Radman Mills
Looking for something different? Other Omis activities we've written about
- Omi: Beach & Fort Private Tour- ideal for cruise guests
- Omi: 2-Person Buggy Tour with Lunch and Wine Tasting
- Omi: 2-Hour Cetina River Boat Tour and Nature Park Visit
- Omi: Free Climbing gear, Daily Rental
- Omi, Croatia: Rent a Kayak on the Cetina River
- Omi: Cetina River Canyon Glass Boat Tour to Radman Mills
- Omi/Split: 4h Kayaking in Cetina Protected Nature Park Area
- Omi: Stand Up Paddle Board (SUP), Daily Rental
- Omi: Semi-Submarine Underwater Adventure
- Omi: Jet Ski Rental with Instructions
- Omi/Split: Cetina River Rafting Adventure & Cliff Jumping
- Split/Omi – Guided Kayaking & Snorkeling Tour Cetina River
