TUNNEL ABSEILING PLUS tour the underground

Croatia isn’t just about stunning coastlines and crystal-clear waters—hidden beneath the surface lies a world of adventure and history waiting to be uncovered. The Tunnel Abseiling Plus tour in Zagreb County offers a unique blend of exploring a 550-meter-long WWII underground fortress and trying your hand at abseiling, all with safety, guidance, and a dash of adrenaline. This experience promises a fascinating journey into a previously forgotten site, combined with an activity that’s accessible even to beginners.

What really excites us about this tour is the way it seamlessly combines history and thrill, making it perfect for those who love a bit of both. The professional guidance and safety measures mean even newcomers feel comfortable trying something new. However, a potential consideration is the underground temperature—around 14°C—so packing some warm clothes is recommended. This tour suits adventurous travelers who want to add an authentic, hands-on experience to their Croatia trip without needing previous abseiling experience. It’s ideal for curious explorers, history buffs, and anyone looking for a memorable challenge.

Key Points

• Authentic underground experience in a WWII fortress that remained hidden for years
• Beginner-friendly abseiling options with professional guidance
• Unique combination of history, natural architecture, and adventure activities
• Includes multimedia effects and a surprise ending that immerses you in the past
• Affordable for the value offered—a full day of exploration and adrenaline for just $88
• Private tours available, with flexible scheduling to suit your plans

Discovering the Underground Fortress

The tour begins with a warm welcome and an introduction to the underground fortress of San Giovanni, an architectural relic from World War II. This fortress, which was never fully completed, offers a fascinating glimpse into the building techniques of the era and the way human ingenuity combined with natural formations. The site was long forgotten until recent years, making it a hidden gem for those who enjoy off-the-beaten-path experiences.

As you descend into the underground chambers, you’ll be surrounded by concrete walls, narrow corridors, and cavernous high rooms. The site’s two-level structure allows for multiple abseiling opportunities, adding layers of excitement for those craving more than just a walk-through. Guided by licensed professionals, you’ll safely explore this unique blend of human-made architecture and natural rock formations, offering a visual and tactile connection to Croatia’s wartime history.

The Abseiling Experience: Safe, Fun, and Accessible

One of the key highlights of this tour is the abseiling activity, which is designed to be beginners-friendly and inclusive. No prior experience is necessary, as the guides will provide comprehensive instruction, safety equipment, and constant supervision. The tour offers two options: the basic Abseil and the more extended Abseil Plus.

The easier descent involves walking down a vertical rock face, which is straightforward and designed to build confidence. The more challenging descent involves a vertical jump, adding a rush of adrenaline for thrill-seekers. In the Abseil Plus version, you also get to try a cascade-style abseil on uneven, slippery rock—a more demanding, but safe, challenge thanks to the instructor’s backup.

A particular point reviewers love is how the guides—like Ivan and Luka, who are praised for their patience and professionalism—tailor the experience based on each participant’s comfort level. One guest mentioned, “Our guides were very friendly and professional,” which goes a long way in making the activity enjoyable and stress-free for beginners.

Safety and Equipment: Building Confidence

All the abseiling gear is certified and regularly checked, giving peace of mind. The guides will start with a thorough introduction to the techniques and equipment, then lead a practical exercise on a horizontal surface for practice before tackling the vertical descent.

Shoes with non-slip soles are mandatory, which is an important note because the uneven and sometimes slippery surfaces inside the fortress can be tricky, especially for less sturdy footwear. The facilities are well-maintained, and safety is clearly a priority, which is reflected in the high praise from reviewers like Stefan, who said, “We felt safe with the patient and friendly guides.”

Multimedia and Surprises: Bringing History to Life

Once inside the fortress, the tour incorporates special effects and projections that bring the site’s history to life—an immersive experience that enhances the storytelling. The highlight is a special audio-visual surprise at the end, transporting you back in time, which adds a fun, memorable touch to the adventure.

For the brave and adventurous, there’s an option to turn off head torches and find your way out in complete darkness—an intense but rewarding challenge that tests your nerve and trust in your guides.

Logistics and Practical Details

The tour lasts about a full day, starting with the descent into the underground fortress, followed by the abseiling activities. The price of $88 per person is quite reasonable given what’s included: all equipment, guidance, entrance, multimedia effects, insurance, and even a wine tasting at the end. The wine tasting is a lovely touch, allowing participants to unwind and chat about their experience.

Transport is included from the meeting point, and the guides are flexible with private tours and other schedules—simply reach out via WhatsApp for arrangements. The group size is generally small, ensuring personalized attention, which many reviewers appreciate.

One practical tip from reviewers is to bring warmer clothes—the underground temperature stays around 14°C—and sturdy, non-slip footwear is essential for safety and comfort.

The Experience: What Travelers Are Saying

Across reviews, people repeatedly mention the professionalism and warmth of the guides. Lydia described her experience as “very warm and welcoming,” while Dylan noted that the instructors “were knowledgeable on both the history of the site and in teaching basic abseiling skills.” This blend of education and adventure is what makes this tour stand out.

Many mention the value for money—for just $88, they got a full day of exploration, adrenaline, and a special cultural experience. The audio-visual effects and surprises at the end consistently earn praise for elevating the visit beyond a simple activity.

Who Should Consider This Tour?

This activity is not suitable for children under 10, or those with claustrophobia, epilepsy, or seizures, due to the underground environment and physical activity involved. However, those who enjoy light adventure, history, and atmospheric settings will find this tour highly rewarding.

It’s especially appealing to beginners because of the step-by-step coaching and safety backups. The small group setting makes it suitable for couples, solo travelers, or small groups seeking a personalized experience.

In The Sum Up

The Tunnel Abseiling Plus tour offers a fantastic combination of history, adventure, and stunning underground scenery. It’s a great pick for travelers who want to experience Croatia beyond the usual tourist spots—getting hands-on with the past while challenging themselves in a safe, supportive environment. The professional guides and well-maintained equipment ensure that even novices can feel secure and enjoy the thrill.

While the underground temperature and physical activity require some preparation, the overall experience is highly accessible and fun. The added multimedia effects and surprises make it a memorable adventure, perfect for those who crave something different.

This tour provides excellent value for its price, especially given its unique setting and the personalized attention from guides. Whether you’re a history buff, an adrenaline junkie, or someone seeking a truly authentic Croatian experience, this underground adventure is well worth considering.

FAQ

Is previous experience needed for abseiling? No, the tour is designed for beginners, with full guidance and safety backup from professional instructors. You decide on the spot which descent suits your comfort level.

What should I wear for this tour? Sturdy shoes with non-slip soles are mandatory. It’s also recommended to bring warmer clothes since the underground environment stays around 14°C.

How long does the tour last? The entire experience typically takes about a full day, including the underground exploration, abseiling activities, multimedia effects, and wine tasting.

Can I book a private tour? Yes, private tours and alternative schedules are available upon request. Contact via WhatsApp for personalized arrangements.

Is the site suitable for children? The tour is not recommended for children under 10, especially due to the underground environment and activity level.

What safety measures are in place? All equipment is certified and regularly checked. Guides are licensed and provide comprehensive safety instructions, ensuring a secure experience.

What if I have special requirements or concerns? Reach out directly via WhatsApp, and the guides will do their best to accommodate your needs or provide more information.

If you’re looking to turn your Croatia visit into an adventure filled with history, stunning visuals, and a good dose of adrenaline, the Tunnel Abseiling Plus tour offers an experience that’s both exciting and meaningful. It’s perfect for those eager to explore beyond the surface, get physically active, and create memories inside a secret underground fortress.