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Dortmund

Dortmund's Green Lungs: The Paradox of Coal and Petals

7.5 km184 min7 stops

What awaits you on this Red Thread tour

Forget everything you think you know about the industrial Ruhr Valley. Join Tom and Elena on a redthread tour that shatters the 'grey city' stereotype, revealing how Dortmund transformed its scarred, coal-mined earth into one of Europe's most spectacular botanical havens. From a garbage dump reborn as a sprawling park to a bombed-out castle swallowed by nature, discover the breathtaking paradox of how industrial destruction inadvertently birthed ecological sanctuaries.

Itinerary

1

TOUR START

Westfalenpark Eingang Ruhrallee

The starting point of our green journey, introducing the 1959 BUGA that transformed a garbage dump into a post-war botanical rebirth.

Westfalenpark Eingang Ruhrallee

Pic by Mbdortmund on Wikimedia Commons (GFDL 1.2)

0.68 km • 10 min
2

STOP 2

Deutsches Rosarium VDH

A highly sensory rosary housing over 3,000 rose varieties, showcasing meticulous botanical curation.

3.34 km • 51 min
During your walk

Interlude

An exploration of Bergsenkung (subsidence) and how coal mining inadvertently shaped the landscape.

3

STOP 3

Naturschutzgebiet Bolmke

A wilder nature reserve where wetlands formed by mining subsidence have been reclaimed by nature.

1.23 km • 19 min
4

STOP 4

Torhaus Rombergpark

A 17th-century gatehouse introducing the aristocratic von Romberg family and their industrially-funded botanical ambitions.

1.33 km • 20 min
5

STOP 5

Schlossruine Rombergpark

The overgrown ruins of the Romberg moated castle, serving as a memorial to WWII destruction and ecological rebirth.

Schlossruine Rombergpark

Pic by J.-H. Janßen on Wikimedia Commons (CC BY-SA 4.0)

0.51 km • 8 min
6

STOP 6

Farn- und Primeltal

A lush, shaded valley showcasing microclimate engineering and a prehistoric botanical collection.

Farn- und Primeltal

Pic by Mbdortmund on Wikimedia Commons (GFDL 1.2)

0.38 km • 6 min
7

END

Moor- und Heidegarten

An artificial moor demonstrating modern conservation efforts and climate resilience.

Moor- und Heidegarten

Pic by Mbdortmund on Wikimedia Commons (GFDL 1.2)

Where the tour takes place

Starting point and rough tour area – the exact route unfolds in the app.

Good to know

  • Ideal for Nature lovers, history buffs, urban explorers, and anyone fascinated by ecological reclamation and post-industrial transformation.
  • Best time Late Spring to Early Autumn, ideally mornings when the birdlife is active and the roses are most fragrant.
  • Footwear Wear sturdy, comfortable walking shoes as we transition from paved parks to muddy nature reserves.
  • Allergies Bring antihistamines if you are sensitive to pollen, especially in the Rosarium.
  • Pacing Take your time in the Bolmke reserve; silence rewards you with better bird sightings.
  • Hydration Bring a water bottle, as the walk between the two major parks can be lengthy.
  • Weather Pack a light rain jacket; the microclimates, especially in the Fern and Primrose Valley, can be damp.
  • Your voucher You can redeem your voucher for two years from purchase. Once redeemed, you have 14 days of access and can enjoy the tour as often as you like during that time.

Your guide

Tom Bennett
Audio sample
0:000:00

Tom Bennett

  • Urbanism, Infrastructure & Innovation
  • Northern England

Architecture and urban planning professional. Explains the city's hidden systems – from mobility to water pipes – clearly and vividly.

Frequently asked questions

How do I get to the tour after buying?

You see your voucher code right after payment – and you also receive it at the email address you entered at checkout. Redeem that code in the Red Thread app; that's where the tour starts.

When does my access start?

Only when you redeem the code in the app, not at purchase. From redemption you have 14 days of access to the tour.

Do I need the Red Thread app?

Yes. The free Red Thread app turns your tour into a vivid experience: with audio, a map, and thoughtful prompts, it guides you from place to place in an engaging and entertaining way. It's available free for iOS and Android.

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