Top 17 Caves 아르 힐즈

The Trass Caves in the Brohl Valley are deep, branching cave passages made of volcanic trass rock – formed around 13,000 years ago by the eruption of the Laacher See volcano.

The opening is surrounded by bizarre trass walls and acts like a gateway into the region's volcanic past.

The small cave was once part of a mine, used during the First World War due to a shortage of raw materials. Today, the entrance is a mysterious spot at the edge of the hiking trail, surrounded by trass rocks and jungle-like vegetation. ⚠️ Caution: The cave is not accessible – there is a risk of collapse.

The Devil's Bone is a cooled lava flow whose bizarre shape was created by volcanic processes and erosion.

The Wolfsschlucht – a moss-covered rocky gorge with a small waterfall, formed by the Tönissteiner Bach.

It's simply breathtaking. You should also read the signs in the area.

On the 🧡Dream Trail, dotted with many highlights, this is a real outdoor highlight, practically an adventure playground for adults: Impressive large trass caves...- Endless photo opportunities beckon here📸🎨🖌. Pleasantly cool & refreshing, especially in the warmer summer season🌞🌡. There are also numerous free parking spaces, some of them shaded, next to the large 🚂viaduct🌞🌡

Directly beneath/near the mighty viaduct is a relatively large, free, and partially shaded parking lot. Not far away are the Trass Caves—one of the many highlights of the dream trail. ⚠️Sturdy footwear recommended.