Hiking Highlight

Created by komoot users
Recommended by 543 out of 560 hikers


  • joetobn

    The trass caves are next to the Wolf Gorge to the absolute highlights of Brohltal. In two places you can explore the caves without any problems.

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    • July 22, 2018

  • Jolanta

    No matter which route you choose, they are all great. But .... Dear midweek, the weekend is always very busy there.

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    • February 25, 2019

  • Markus 🥾⛰

    Something different and really exciting for children

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    • February 25, 2019

  • 🇩🇪 Jas On 🏴󠁧󠁢󠁥󠁮󠁧󠁿

    The story behind it is very interesting. Hard to believe that these beautiful trass caves should have been created by a kind of ash stream (Lahar).

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    • September 5, 2019

  • Roland

    "The sky in the Brohl valley darkened when the Laacher See volcano erupted just five kilometers away. A scorching mixture of lava particles and gases shot into the atmosphere at intervals. Every time the eruptive column collapsed, the material rushed up an air cushion through the surrounding valleys - ash and lava particles filled the valleys up to 60 meters high. Over time, the loose materials of the glowing avalanche have caked into a rock that is known in our region as “Trass”. The Romans built it In the Brohl Valley Trass and used it for building houses, among other things. Finely ground it with the addition of lime and water results in a mortar that hardens under water. It is obvious that it was the Dutch who began mining in the Brohl Valley in the 16th century because Trass is ideal for the construction of dykes and docks, and it was you who gave the volcanic cement its name: “Tyrass” is Dutch and means “glue” Trass walls, which you can see from here, have been excavated and can be visited. Because of their poor quality, they were no longer of interest for mining and are now an impressive testimony to the huge glowing avalanche that once filled the entire valley. "

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    • October 14, 2019

  • Blair ON TOUR

    Amazing caves !!! ... and so many !!!

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    • November 29, 2019

  • Eifelkind

    You have free access to the trass caves

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    • July 21, 2018

  • Manggongjai

    Beautiful trass caves, which are all walkable!

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    • July 22, 2018

  • Andreas

    Certainly very exciting especially for children - but also interesting for adults.

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    • June 12, 2020

  • Stefanie

    Great introduction to the hike

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    • June 23, 2019

  • Pauls Artur

    Very interesting caves that you can also go into.

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    • April 13, 2020

  • Sascha's Wanderblog

    The trail runs straight through the caves

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    • April 19, 2020

  • Alex

    The Trass caves are a great spot and very interesting, and a lot is explained on the boards.
    You can park there great.
    The Wolfsschlucht is very recommendable

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    • July 12, 2020

  • Zwenne

    For young and old. An exciting tour of discovery can begin here

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    • August 31, 2020

  • Zwenne

    The caves are fun for young and old to explore.

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    • September 1, 2020

  • Nina

    A great highlight, don't forget the flashlight as it is dark in the other caves.

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    • July 3, 2020

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Best Hikes to Trasshöhleneingang

Our Tour recommendations are based on thousands of activities completed by other people on komoot.

Location: Burgbrohl, Ahrweiler, Rhineland-Palatinate, Germany


  • Elevation210 m

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