What exactly are the underground tunnels at Książ Castle?

They are part of Project Riese, a secret Nazi WWII initiative involving vast underground corridors beneath Książ Castle. The complex remains one of history's great unsolved mysteries, with research ongoing into its true purpose. During the tour, you'll explore accessible sections and learn about wartime history and the forced labour used in construction.

Is this tour suitable for children?

Yes, though the 8-hour duration suits ages 8+. The WWII tunnel sections are historically educational but may be intense for younger children; the castle interiors and Church of Peace are family-friendly. Check with the operator about pace and any age-specific guidance.

What is the Church of Peace and why is it UNESCO-listed?

Świdnica's Church of Peace is one of Europe's oldest timber-framed churches, built in the 17th century. It's a UNESCO World Heritage site due to its remarkable architectural integrity, ingenious wood construction techniques, and significance as a Protestant sanctuary from a period of religious conflict in Silesia.

Can I do this tour independently, or is a guide required?

The tour is available as both a guided bus/minivan experience and a self-drive option. A guide provides curated historical context and logistics; self-drive offers flexibility and personal pacing. Both cover the same sites.

How much walking and climbing is involved?

Expect moderate activity: castle exploration includes stairs and multiple floors, the Palm House is ground-level, and underground tunnels involve flat but uneven passages. The Church of Peace is mostly flat. Wear comfortable, supportive shoes and plan rest time between sites.

What is included in the EUR 119 starting price?

The price covers the 8-hour tour with access to Książ Castle and its underground sections, the Palm House, and the Church of Peace. Confirm whether entry fees, guide services, and transport are included or additional when booking.

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Lower Silesia Tour: Książ Castle & Świdnica Church of Peace

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Wroclaw, Poland

Cultural ToursDay Trips & ExcursionsSelf-Drive ToursBus & Minivan Tours

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About this activity

Explore two of Lower Silesia's most compelling heritage sites on this 8-hour day trip from Wrocław: the palatial Książ Castle, Poland's third-largest stronghold, and the UNESCO-listed Church of Peace in Świdnica. This tour weaves together aristocratic grandeur, WWII history, and religious heritage into a single immersive journey.

Discover some of the most fascinating attractions in Lower Silesia on a full-day tour from Wrocław combining castles, mysterious underground tunnels and UNESCO heritage sites. This experience is perfect for travelers looking for the best day trips from Wrocław and wanting to explore the rich history and hidden treasures of southwest Poland.

The tour begins with a visit to the magnificent Książ Castle, the third-largest castle in Poland and one of the most spectacular landmarks in Lower Silesia. Surrounded by forests and overlooking the picturesque Pełcznica River valley, the castle is often called the “Pearl of Lower Silesia.” During the visit you will explore elegant halls, terraces and historic interiors while learning about the fascinating history of the powerful Hochberg family and the castle’s most famous resident, Princess Daisy.

Książ Castle is also known for its mysterious World War II past and the underground Nazi tunnels hidden beneath the complex. Built during the secret Project Riese, these underground corridors remain one of the greatest mysteries of Nazi Germany in Lower Silesia. During the tour you will discover the underground tunnels and learn about wartime secrets, forced labor and the unfinished underground structures connected to the Third Reich.

You will also visit the historic Palm House greenhouse near Książ Castle, filled with exotic plants and tropical vegetation. Originally built for Princess Daisy, the Palm House remains one of the most unique attractions near Wrocław.

After the guided visit, you will have free time at Książ Castle to relax, take photos or enjoy lunch with beautiful views of the surrounding landscape.

The journey continues to Świdnica, home to the extraordinary Church of Peace, one of Poland’s most remarkable UNESCO World Heritage Sites. Built in the 17th century using only wood, clay and straw, it is considered the largest timber-framed religious building in Europe and an outstanding masterpiece of Baroque architecture.

If you are looking for castles near Wrocław, Nazi underground tunnels and UNESCO attractions in Lower Silesia, this tour offers one of the most unforgettable experiences in the region.

Highlights

✓Książ Castle's ornate halls, terraces and the dramatic Pełcznica River valley setting
✓Underground Nazi tunnels from secret WWII Project Riese—one of Europe's most mysterious wartime sites
✓Tropical Palm House greenhouse originally commissioned by Princess Daisy
✓UNESCO World Heritage Church of Peace in Świdnica—one of Europe's oldest timber-framed churches
✓Insights into the Hochberg family dynasty and castle's aristocratic past

Insider tips

★Arrive early at Książ Castle to beat crowds and get the best photography light in the river valley
★Wear sturdy shoes for the underground tunnel sections—they can be damp and uneven
★The Church of Peace is working Protestant sanctuary; visit outside service times for uninterrupted exploration
★Combine this tour with lunch in nearby Wałbrzych for authentic Silesian regional cuisine

Good to know

•Full-day duration (8 hours) includes travel time; pace is moderate with walking at both main sites
•Underground tunnels may be cool year-round; bring a light jacket
•Available as guided bus/minivan tour or self-drive option—choose based on preference for narration vs. flexibility
•Camera-friendly throughout, though some tunnel sections have limited natural light

Who it's for

History enthusiasts interested in WWII heritage and Cold War-era mysteriesArchitecture and castle lovers seeking palatial interiors and landscape viewsUNESCO and cultural heritage touristsFamilies seeking an educational full-day excursion from Wrocław

Best time to visit

Spring (April–May) and early autumn (September–October) offer pleasant weather and smaller crowds. Avoid peak summer weekends if you prefer a more intimate experience; winter visits are atmospheric but some outdoor areas may be slippery.

Frequently asked questions

Reviews

(3)

Greg P.

Mar 2026

our guide Kemal had so many stories and the view from the old fort ramparts was the highlight, and ideal with kids (ours are 6 and 9), and covered 3 sites in one go, loved it

Ruth T.

Dec 2025

Not bad but not great, the frescoes inside the chapel we like but 2 solid hours of history only. Maybe can improve, little bit expensive.

Emma K.

Feb 2025

our guide Giulia had so many stories and the view from the old fort ramparts was the highlight, and miles ahead of a similar tour we tried in Seville, 10/10

from€119/ person

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