- Day trip to Atta Cave and Braunfels Castle from Frankfurt
- Explore Germany's largest dripstone cave with an expert local guide
- See incredible calcite crystal formations inside Atta Cave
- Spend your afternoon exploring the medieval ruins at Braunfels Castle
- Visit the German Bell Museum (Deutsches Glockenmuseum) inside the castle grounds
- Small-group tour with a maximum of 14 people ensures personalized attention