What exactly was Gross-Rosen camp?

Originally a sub-camp of Sachsenhausen, Gross-Rosen became Silesia's largest autonomous Nazi concentration camp from 1941. Prisoners were worked to death in granite quarries as part of the Nazi extermination-through-labour program. Approximately 40,000 died there over its five-year operation.

Can I enter the Riese tunnels, or just see the entrance?

You enter the tunnels as part of the tour. You'll walk through excavated chambers, shafts, guardrooms, and a large stone hall. The tunnels are uneven and cool (around 10°C), so sturdy shoes and a jacket are essential.

What was the Riese Complex actually used for?

Riese's true purpose remains debated. Built by the Nazi Todt Organisation from autumn 1943 using slave labour from Gross-Rosen, theories include a weapons facility, underground bunker, administrative centre, or weapons test site. Historians still investigate the site.

How long is the tour and what's included?

The tour is 8.5 hours total, including transport from Wrocław, guided visits to both Gross-Rosen camp museum and memorials, and Riese tunnel exploration. Confirmation of pickup location and any meal breaks should be confirmed when booking.

Is this tour appropriate for children?

This is emotionally intense content focusing on genocide and forced labour. It is not recommended for very young children. Older teens with an interest in history and parental discretion are better suited; consider discussing the context beforehand.

Wear sturdy, closed-toe shoes suitable for uneven ground and cold tunnels. Bring a waterproof jacket, water, and snacks. The Riese complex stays around 10°C year-round, so dress warmly in layers. A torch can be helpful for tunnel sections, though guides may provide them.

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Legacy of the World War II Day Tour from Wroclaw

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Wroclaw, Poland

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About this activity

This 8.5-hour guided tour from Wrocław explores Poland's World War II heritage through visits to Gross-Rosen concentration camp and the mysterious Riese underground complex in the Owl Mountains. You'll confront the industrial-scale machinery of Nazi forced labour, genocide, and wartime engineering ambitions while reflecting on over 40,000 victims.

Take a sobering tour, that shows you the complicated heritage of World War II and its lasting impact on the province. Visit the former German Nazi concentration camp of Gross Rosen known for its deadly work conditions in the granite quarry. Find out about the German strategy of extermination through labor. See the mysterious legacy of World War II - the Riese Complex in the Owl Mountains. Enter into the tunnels, find out about potential hypotheses of its purpose, see the guardrooms and spacious hall excavated in stone

The tour starts in the state museum and a former German Nazi concentration camp of Gross Rosen. Originally a sub-camp of Sachsenhausen, from 1941 it became the largest fully autonomous camp in the Silesian province and was known for its deadly work conditions in the granite quarry. Find out about the German state’s machine of brutal forced labor and human annihilation. Experience the sobering feeling of visiting the former SS Cantine building, field crematoria, and memorial site while taking some time to reflect upon approximately 40,000 victims of Nazi terror.

The last sad and at the same time mysterious legacy of World War II is the Complex in the Owl Mountains. The program known under the code name Riese, which means giant in German, was a huge construction endeavor conducted from Autumn 1943 by the famous paramilitary organization Todt. The inmates, mainly from the Gross Rosen camp, worked in deadly conditions excavating the system of tunnels and shafts. Visit a part of the program in Walim, enter into the tunnels, find out about potential hypotheses of its purpose, see the guardrooms and spacious hall excavated in stone. Please note that there is a stable temperature of approx. 5-7 degrees Celsius and humidity of 98% through the whole year inside the tunnels, so please do not forget to take closed shoes and warm clothes with you. The visit in the complex takes approximately 1 hour.

HIGHLIGHTS

Take a sobering tour, that shows you the complicated heritage of World War II and its lasting impact on the province
Visit the former German Nazi concentration camp of Gross Rosen known for its deadly work conditions in the granite quarry.
Find out about the German strategy of extermination through labour
See the mysterious legacy of World War II – the Riese Complex in the Owl Mountains
Enter into the tunnels, find out about potential hypotheses of its purpose, see the guard rooms and spacious hall excavated in stone

Highlights

✓Tour the Gross-Rosen concentration camp museum and memorial site with original SS buildings and field crematoria
✓Learn about Nazi extermination-through-labour strategy in the deadly granite quarries
✓Descend into the Riese ('Giant') tunnel complex excavated by camp inmates under Todt Organisation
✓Explore theories about Riese's true purpose amid vast stone chambers and guard posts
✓Pay respects at memorial sites honouring tens of thousands of victims

Insider tips

★Wear sturdy, closed-toe shoes—the Riese tunnels are uneven and damp; temperature stays around 10°C year-round so bring a jacket
★Allow quiet time for reflection at Gross-Rosen; the scale and authenticity of preserved structures hits harder than expected
★Ask your guide about competing hypotheses for Riese's purpose—historians still debate whether it was a weapons factory, bunker, or administrative centre

Good to know

•8.5-hour duration includes travel time; plan for minimal breaks
•Tunnel sections involve uneven footing and low ceilings in places; not suitable for mobility limitations or claustrophobia
•Tour departs from Wrocław; confirm exact pickup location when booking
•Bring water, snacks, and weather-appropriate clothing; facilities are basic at both sites
•This is emotionally demanding content; not recommended for very young children

Who it's for

History enthusiasts and WWII scholars seeking primary sources and authentic sitesEducational groups and students studying the Holocaust and Nazi labour systemsVisitors exploring Poland's complex wartime past and remembranceCultural travellers interested in industrial archaeology and contested heritage

Best time to visit

Visit spring through autumn (May–September) for accessible weather and daylight in the tunnels. Early morning departures maximise daylight at Riese and allow better photography without crowds.

Frequently asked questions

Reviews

(3)

Toni G.

Feb 2026

our guide Jonas had so many stories and the bit at the end nobody expects was the highlight, and honestly better than the tour we did in Phuket last year.

Aisha F.

Feb 2026

our guide Ingrid couldnt do enough for us and a stop the guide added on the fly was the highlight, and worked great for a solo traveller like me, and 6 stops in about 3 hours, no joke

Emma D.

Apr 2025

our guide Tariq really knew their stuff and the bit at the end nobody expects was the highlight, and over easter break.

from€125/ person

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