Germany·May 25 - 26 2024

Klettern am Beton

Explore Berlin's unique climbing culture on World War II concrete walls.



Klettern am Beton, literally "climbing on concrete", this is the experience that we propose. Inspired by a publication ("Am Beton") by three german climbers (Veit Althoff, Jonas Jägermeyr and Christian Wahle), this experience combines underground culture, urbex and climbing in one of the most vibrant cities in the world: Berlin. As a flat city, Berlin may not seem like an obvious hub for climbing culture, but in recent years it has emerged as a thriving scene for bouldering and rock climbing enthusiasts, with several indoor and outdoor climbing facilities available for enthusiasts. Outdoor climbing is particularly exciting in Berlin, as the city has a number of abandoned buildings and structures that provide unique and challenging climbing opportunities. Indeed, you'll have the opportunity to climb World War II bunkers. These abandoned structures provide a unique and challenging climbing experience that you won't find anywhere else in the world...


WW2 abandoned bunkers

WW2 abandoned bunkers

Berlin's World War II abandoned bunkers are haunting remnants of the city's tumultuous past. These imposing concrete structures were built to withstand the most intense bombings of the war, and many still stand today as eerie reminders of the destruction that took place. While some of these bunkers have been repurposed as museums or event spaces, many remain abandoned and inaccessible to the public. However, for those with a sense of adventure, exploring these forgotten bunkers has become a popular pastime. Whether it's climbing the walls or simply exploring the dark and eerie spaces, visiting Berlin's WW2 abandoned bunkers offers a unique opportunity to connect with the city's history in a visceral and unforgettable way.

Underground Culture

Underground Culture

Berlin's underground culture is a vibrant and dynamic scene that encompasses a wide range of artistic expressions and alternative lifestyles. From graffiti art to experimental music and theater, this subculture thrives on the fringes of mainstream society, offering a space for free expression and creative exploration. Berlin's underground scene has a long and storied history, dating back to the city's time as a hub of countercultural activity during the Cold War. Today, it remains a defining feature of the city's cultural landscape, drawing in artists, musicians, and creatives from all over the world. For those looking to escape the constraints of traditional society and connect with a community of like-minded individuals, Berlin's underground culture is an exciting and welcoming space to explore.




Lee is a certified climbing instructor, based in Berlin with more than 10 years of experience in lead climbing, bouldering, and alpinism. He summited several 4k Peaks of the Alps, including Mont Blanc, and climbed loads of walls in Europe and Asia. He is also Rope Access Technician and Lead-Routesetter.



You can choose whether you want to climb for two days or only one. Here below you can find the high level program. We'll also leave some time to explore some off the beaten track and underground attractions. One such attraction is the abandoned Spreepark, a former East German amusement park that has been left to decay since the fall of the Berlin Wall. Another lesser-known landmark is Teufelsberg, a man-made hill constructed from the rubble of World War II and topped with a former US listening station, offering breathtaking views of the city. For those interested in street art, the East Side Gallery offers an impressive collection of murals painted on a section of the Berlin Wall. The Mauerpark Flea Market, held every Sunday, is another popular spot for locals and visitors alike, offering a range of vintage and handmade goods, food, and live music. Exploring these off the beaten track and underground landmarks offers a glimpse into a different side of Berlin and allows visitors to experience the city's unique and diverse culture.




Day 1

Humboldthain Flak Towers

Humboldthain Flank Towers are two historic flak towers at the top of a World War II air-raid shelter, a monstrous concrete structure from the early 1940s that offers a singular view of the north of Berlin.

The flak towers were built by personal order of Adolf Hitler in 1940. Following the first lethal air raids of the Royal Air Force on German cities, thousands of air-raid shelters were built all across the German Reich. This massive construction effort included building so-called flak towers, huge above-ground blockhouse towers equipped with anti-aircraft guns. Eight of these structures were built in Berlin, Hamburg, and Vienna. Flak is the abbreviation of Fliegerabwehrkanone, which literally translates to “aircraft defense cannon.”

These massive concrete structures are now a great location to climb offering climbing walls that are managed by the German Alpine Club.

After the climb, you'll have the opportunity to visit the interior of the tower. On this fascinating tour, we will be shown three of the seven floors of one of the biggest bunkers in the city. Here a dazzling underground landscape awaits – complete with dizzying views into the depths of the building. In addition, the guides will present in-depth information about the history of the structure and the still on-going project to clean it up. To date, members of the Berlin Underworlds Association have spent a total of over 8,000 hours removing over 1,400 cubic metres of rubble – and, in the process, have created ideal sleeping quarters for bats.


Day 1 - evening

Der Kegel

In the evening we can move in Friedrichshein, a vibrant neborhood in Berlin where you can also climb Der Kegel.

Der Kegel is over 18 metres high. Different types of climbing can be tried on the exterior of a former overhead hopper in Warschauer Straße in Friedrichshain. A combination of artificial handholds and the stone structure make climbing here a unique experience. And anyone who has trained long enough can also make it to the top of the Kegel: you will be rewarded here with a wonderful view and can write your name, the date and the route climbed in the summit log.


Day 2

Koralle Lager

40 mins away from Berlin, there's another interesting bunker.

Koralle Lager was the code name of a military facility north of Bernau near Berlin, in which 1943-1945 the command center of the High Command of the Navy (OKM) and the radio control center for the submarine war was located.


Day 2

Teufesberg (optional)

In case you want to do some more exploration, we recommend visiting Teufelsberg in the evening.

Teufelsberg is a unique and fascinating landmark in Berlin that is worth exploring for those interested in history and architecture. It is a man-made hill standing 120 meters high, constructed from the rubble of World War II. Atop the hill, visitors can find the former US listening station, which was used during the Cold War to spy on East Germany and the Soviet Union. The station's architecture is striking, with its domed roofs and walls covered in colorful graffiti, making it a popular spot for urban explorers and photographers. Today, the site is open to the public and offers stunning panoramic views of Berlin from its observation deck. Visitors can also take guided tours of the station and learn about its history and significance during the Cold War. Teufelsberg is a unique and fascinating destination that offers a glimpse into Berlin's past and its continued evolution as a city. It also hosts some climbing spots that will be our main destination.

What's Included

What's Included

Certified climbing instructor

2 days of climbing

Restaurants and bars

Climbing equipment (can be rent!)

Flights and transportation

Hotel (see "You'll be staying here" section)

Anything not detailed in the "What's included" section

Berlin, Germany

Underground culture, urbex and climbing combined...

As you ascend the walls of the bunkers, you'll be treated to stunning views of the city skyline and the surrounding landscape. It's a thrilling way to explore Berlin's history and architecture, all while getting an intense workout. With experienced guides to show you the ropes and ensure your safety, climbing the WW2 bunkers in Berlin is an unforgettable experience that's perfect for adventure-seekers of all levels. So why not take the leap and climb your way to the top of Berlin's most iconic structures?

Berlin, Germany

Trip Tips

Climbing Skills

Climbing Skills

To fully enjoy the experience you should be able to climb 6b/VII routes . However you will be accompanied at all times by a certified instructor that will guide you to improve your climbing skills.



Fjello selects local partners with the utmost care. For any inaccuracies, however, we can not accept any liability. Rock climbing is a risky sport that takes place in nature. Ultimately, you are fully responsible for the choices you make. Fjello recommends that anyone who does not have sufficient knowledge and skills not go outdoor alone. All our trips include a local certified guide who will take care of your group. Enjoy your adventures safely with first-hand information from the locals.



Please DO NOT book your flights until this trip is confirmed. Most of our trips require a minimum number of participants to run. Wait for the status of the trip to be confirmed and for more information go to the "How it works" section

You'll Be Staying Here



We have a convention with Numa and you can use our code NUMAFJELLO15 to receive a 15% discount on the accommodation.

With rooms and apartments in the world’s greatest neighbourhoods, Numa is treating everyone to the feeling of comfort, the beauty of convenience and the delight of design.

Local is in Numa's DNA and always put the neighbourhood first (right after the guests): there’ll always be a hit list of local restaurants, bars and things to do.

Related Blog Posts


Urbex and Climbing in Berlin



No, as reflected in the "What's included/What's not included" section, accommodation is not included. However, we have an agreement with Numa and you can get a 15% discount with the following code: NUMAFJELLO15.

You can visit this website for insights about the weather.

You should bring:

  • climbing shoes
  • harness
  • chalk bag
  • belay device
  • helmet

If you have a rope and quickdraws you can bring them.

Klettern am Beton

Germany· May 25 - 26 2024· 1 night