Shot on a visit in April 2025
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Old Wastewater Treatment Plant

4.8
·2k reviews·, Czechia

Explore Brno's colossal underground reservoirs, a former wastewater plant transformed with light shows and history.

Highlights

Highlights

Must-see attractions

Social content

Social

From TikTok & Reddit

Best Time

Weekdays, afternoons

Fewer crowds, better experience

CrowdLow
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Shot on a visit in April 2025

Old Wastewater Treatment Plant

Best Time

Weekdays, afternoons

Fewer crowds, better experience

CrowdLow
Highlights

Highlights

Must-see attractions

Explore Brno's colossal underground reservoirs, a former wastewater plant transformed with light shows and history.

4.8
(2k reviews)

"Incredible historic site to explore - you won't find anything like this."

Vertical photo
TIP

🎟️ Book Tickets Online

Secure your spot and avoid queues by booking tickets in advance, especially for popular tour times.

🎧 Audio Guide Quality

The English audio guide is of good quality and enhances the understanding of the site's history.

Third hero image

Highlights

Discover the most iconic attractions and experiences

The Enormous Water Tanks

The Enormous Water Tanks

Underground reservoirs

Explore colossal underground reservoirs with a mystical atmosphere and impressive architecture. Play with echoes and acoustics!

Reddit
Light and Sound Show

Light and Sound Show

Third section of the tanks

Experience an amazing laser and light show that transforms the historic space into a dynamic visual spectacle.

Reddit
Guided Tour Experience

Guided Tour Experience

Various sections

Enhance your visit with a guided tour. Guides are passionate and knowledgeable, making the history and engineering come alive.

Reddit
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Planning Your Visit

Book Your Tickets in Advance

While not always strictly necessary, booking tickets for the Water Tanks Brno online can save you time, especially during peak season. Some tours might sell out, so securing your spot ensures you don't miss out on this unique underground experience. Reddit

Embrace the Underground Atmosphere

The Old Wastewater Treatment Plant, now known as Water Tanks Brno, offers a unique historical and architectural journey. Prepare for a cool, damp environment and be ready to explore its fascinating chambers and acoustics. Reddit

Best Times

When
Weekdays, afternoons
Why
Fewer crowds, better experience
Crowd
Low
When
Weekends, early morning
Why
Beat the rush, enjoy the quiet
Crowd
Medium
When
Summer, midday
Why
Cool escape from heat
Crowd
High

Insider Tips

from TikTok, Instagram & Reddit

Slow-mo around Brno 🤩 #MotoGP #CzechGP #motorcycle #racing #marcmarquez #mm93 #motos
@tntsportsbikes
40.4K likes • 735.1K views

🎟️ Book Tickets Online

Secure your spot and avoid queues by booking tickets in advance, especially for popular tour times. Reddit

🎧 Audio Guide Quality

The English audio guide is of good quality and enhances the understanding of the site's history. Reddit

it is what it is:’) #olomouc #brno #fyp #czech
@vojtiik_krenek
27.2K likes • 205.5K views
How old does this old spiral staircase look to you? We recently replaced our old rusted out staircase that leads down to wastewater treatment plant’s comminutors. H2 gas from wastewater leads to corrosion of exposed metal quickly. Dirty talk: Comminutors are the first stage of wastewater entering the plant, sort of like garbage disposals, grinding and shredding solids. WE ❤️ CLEAN WATER #logan...
logansportutilities
0 likes • 298 views

🚶‍♀️ Explore All Sections

Visit all three sections for a complete experience, including the laser show in the third. Reddit

🧥 Dress for Cool Temps

It's cool and damp underground, so bring a light jacket or sweater for comfort. Reddit

Hidden beyond the fences of the Riga Freeport, Krievu Sala (Russian Island) holds the remains of what once was a vital piece of the city’s infrastructure — the old wastewater treatment plant, built long before the current facility in Daugavgrīva took over. Krievu Sala itself is an artificial island, created in the 19th century by dredging the Daugava. It was intended to expand the port’s capacity...
lostinbaltic
607 likes • 27.2K views

Tips

from all over the internet

🎟️ Book Tickets Online

Secure your spot and avoid queues by booking tickets in advance, especially for popular tour times. Reddit

🎧 Audio Guide Quality

The English audio guide is of good quality and enhances the understanding of the site's history. Reddit

🚶‍♀️ Explore All Sections

Visit all three sections for a complete experience, including the laser show in the third. Reddit

🧥 Dress for Cool Temps

It's cool and damp underground, so bring a light jacket or sweater for comfort. Reddit

🔊 Test the Echoes

Don't miss the chance to play with the unique acoustics and echoes within the chambers. Reddit

What Travellers Say

4.8
(2k reviews)

Reviews Summary

Visitors rave about the Water Tanks Brno, calling it an incredible and unique historic site with a mystical atmosphere. The enormous tanks, engaging light shows, and knowledgeable guides contribute to a highly recommended experience. Some note the cool, damp environment and suggest booking tickets in advance.

"A great place to visit. The tanks are enormous and very interesting. The guide really liked his job, great tour. Audio guide in English - good quality. The light and sound show - amazing."

Natalia Malanowska

"Water Tanks Brno is very close to the center. It's a short walk after the bus or tram. The woman at the ticket office was very helpful. The attractions are divided into three sections. We visited the second section first, then the first section. The third section features a laser show every hour. Inside, there's a separate laser show every quarter past the hour. It lasts three to five minutes. The ticket costs 350 CZK per person. It's worth a visit and I highly recommend it."

Artur Serhu

"Incredible historic site to explore - you won't find anything like this. Underground reservoirs have a mystical atmosphere, interesting architecture, and it's also fun to play with the echo and acoustics of the space. I liked that the chambers are equipped with digital art objects and laser shows, which greatly enriches the experience of staying here. Totally worth it."

Ярина Короткевич

What People Like

Enormous underground tanks
Amazing light and sound shows
Passionate and helpful guides

What People Dislike

Cool and damp environment
Need to book tickets

Frequently Asked Questions

🚇 🗺️ Getting There

The Old Wastewater Treatment Plant, now known as Water Tanks Brno, is conveniently located close to the city center. You can reach it via a short walk after taking a bus or tram. Reddit Many visitors find it easily accessible from public transport stops. TikTok

Information on dedicated parking is limited, but given its central location, public transport is highly recommended. Consider using trams or buses to reach the vicinity. TikTok

Trams and buses are the most convenient options. Check local transport schedules for routes serving the area near the Water Tanks Brno. TikTok

The walk from the nearest public transport stops is generally short, making it an easy addition to your Brno exploration. Reddit

While cycling is popular in Brno, specific bike parking information for the site isn't widely advertised. Public transport remains a reliable choice. TikTok

🎫 🎫 Tickets & Entry

The ticket price is approximately 350 CZK per person. It's considered well worth the cost for the unique experience offered. Reddit

Booking tickets in advance is recommended, especially during peak tourist seasons, to ensure availability and avoid potential queues. Reddit

Opening hours can vary, but the site is generally accessible during daylight hours. It's best to check the official website for the most current information. Reddit

Yes, the attractions are divided into sections, and guided tours are available which significantly enhance the experience. Reddit+1

Specific discount information is not widely published. It's advisable to inquire directly with the ticket office or check their official website for any available concessions. Reddit

🎫 🧭 Onsite Experience

You can explore enormous underground reservoirs, experience unique acoustics, and enjoy impressive digital art and laser shows. Reddit The site offers a fascinating glimpse into industrial history. Reddit

A visit can take about an hour or so, depending on whether you opt for a guided tour and how much time you spend exploring each section. Reddit

Yes, children can find the vastness of the tanks and the light shows engaging. The unique environment offers a different kind of exploration. Reddit

It's consistently cool and damp inside the underground reservoirs, offering a refreshing escape during warmer months. Reddit

Photography is generally allowed, but it's always good to check for any specific restrictions on the day of your visit. The unique lighting can make for dramatic shots. TikTok

📸 📸 Photography

The vastness of the underground reservoirs, the interesting architecture, and the dynamic light and sound shows offer numerous photographic opportunities. TikTokReddit

While not explicitly stated, it's generally advisable to use natural light or a low-flash setting to avoid disturbing the atmosphere and other visitors. Check on-site signage. TikTok

Experiment with longer exposure times to capture the movement of light and color during the laser shows. A tripod can be very helpful. TikTok

Drone photography is highly unlikely to be permitted within the underground structures due to safety and operational reasons. TikTok

While echoes are auditory, you can visually represent them through wide-angle shots emphasizing the scale and emptiness of the chambers, or by capturing the light playing on the surfaces. Reddit

For Different Travelers

Tailored advice for your travel style

👨‍👩‍👧 Families with Kids

The Water Tanks Brno can be a fascinating outing for families. The sheer size of the underground reservoirs is impressive for children, and the echoes offer a fun interactive element. Reddit The light and sound shows provide a visually stimulating experience that can capture their attention. Reddit Remember to dress children in layers as it can be cool underground. Reddit

🏛️ History Buffs & Urban Explorers

For those interested in industrial history and urban exploration, the Old Wastewater Treatment Plant is a must-visit. It offers a rare opportunity to explore a well-preserved piece of infrastructure that played a vital role in the city's development. Instagram+1 The guided tours provide in-depth historical context, making it an enriching experience for anyone fascinated by the past. Reddit

📸 Photography Enthusiasts

Photographers will find the Water Tanks Brno to be a unique and challenging location. The dramatic lighting, vast scale, and interesting textures provide ample opportunities for creative shots. TikTok Experiment with long exposures during the light shows and wide-angle lenses to capture the immensity of the underground chambers. Reddit

Deep Dives

In-depth insights and expert knowledge

The History and Engineering of the Water Tanks

The Old Wastewater Treatment Plant in Brno, now repurposed as the Water Tanks Brno, is a testament to early 20th-century engineering. These massive underground reservoirs were originally constructed to manage the city's wastewater, showcasing a significant piece of industrial heritage. The sheer scale of these structures is awe-inspiring, with their robust concrete and brickwork designed for longevity and function. Instagram+1

Visitors can learn about the plant's operational history through informative displays and guided tours. The engineering prowess required to build such subterranean facilities is evident in every chamber. The site's transformation into a tourist attraction highlights a successful adaptive reuse of industrial infrastructure, preserving its historical significance while offering a unique visitor experience. Instagram+1

The site's acoustics are a notable feature, a direct result of its cavernous design. The echoes within the tanks are not just a curiosity but a demonstration of the physics of sound in large, enclosed spaces. This aspect, combined with modern digital art and laser shows, creates a multi-sensory experience that bridges the past and the present. Reddit

Experiencing the Light and Sound Shows

One of the most captivating aspects of visiting the Water Tanks Brno is the integration of modern technology with historical architecture. The light and sound shows, particularly in the third section, transform the dark, imposing reservoirs into vibrant canvases. These shows are designed to highlight the unique atmosphere and scale of the underground space. TikTokReddit

The laser shows, occurring at regular intervals, use beams of light to dance across the water and walls, creating dynamic patterns and illusions. The accompanying soundscapes further enhance the immersive experience, making visitors feel as though they are part of a living, breathing artwork. It's a stark contrast to the original utilitarian purpose of the plant, offering a surprising and memorable spectacle. Reddit

These shows are a key reason many visitors recommend the attraction, adding a layer of entertainment and wonder to the historical exploration. The short duration of each show (3-5 minutes) makes them a perfect, impactful addition to the overall visit, providing a modern twist on a historic site. Reddit

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