The 6th International EarthCache Event in Rüdersdorf:
a celebration for all geology and EarthCaching fans – a review

On October 11, 2025, the Museum Park Rüdersdorf near Berlin became the center of the international EarthCaching community. The Earth Dwarves invited everyone to the 6th International EarthCache Event (6th IEE) – a day designed to encourage geocachers to discover, learn, and meet new people, and one that will remain an unforgettable experience for many.

Since the 20th anniversary of EarthCache, which we celebrated together in Goslar in January 2024, the Earth Dwarves have met with numerous like-minded people several times at various locations in Germany and around the world. There, they talked about rocks, geological processes, and, of course, the special places behind EarthCaches, with the aim of dispelling the uncertainty that many geocachers have about this type of cache. The 6th IEE in Rüdersdorf was the highlight of this journey.

The Rüdersdorf Museum Park offers an extraordinary backdrop. Between historic industrial facilities, an active quarry, and geologically fascinating outcrops, visitors were able to follow the traces of centuries of limestone mining. The mixture of industrial culture, slight lost place charm, and living geology gave the event a unique atmosphere – technically exciting, inspiring, and a little adventurous at the same time.

The program left nothing to be desired. Guided tours of the quarry, themed lectures, workshops, and hands-on activities related to EarthCaching offered plenty of opportunities to learn and try things out. It wasn’t just experienced geocachers who got their money’s worth – beginners and children also found numerous opportunities to immerse themselves in the world of geosciences in a playful way.

We were particularly pleased to welcome international guests: reviewers, GeoAwares, and two Lackeys from HQ in Seattle – *jtcoffee* and *giacaches* – were on site and opened the event with us. *GeoAwareUSA6*, co-organizer of the first IEE in 2012 in Maine (USA), was also present – a wonderful gesture that impressively demonstrated the global solidarity of the EarthCaching community.

In keeping with International EarthCache Day, six new EarthCaches were created and released especially for this weekend. Together with the existing caches and seven additional geocaches in the museum park, they offered a variety of opportunities to explore the grounds. Those who wanted to delve even deeper could also complete 35 AdventureLabs that led through the entire town of Rüdersdorf and taught geological topics in a playful way.

The 6th IEE was more than just an event – it was a meeting place for everyone who shares a passion for discovering our planet. Between guided tours, conversations, and shared adventures, new friendships were formed, and many participants were able to overcome their “fear” of EarthCaches or even took home fresh inspiration for their own EarthCaches.

The Earth Dwarves would like to thank all the helping hands, supporters, and participants who made this day possible. Your enthusiasm, your knowledge, and your shared enjoyment of discovery made the 6th IEE a special experience.

Even though the event is now history, a visit to the Rüdersdorf Museum Park is still worthwhile. Anyone who wants to experience geology up close will continue to find exciting discoveries there amid impressive scenery.