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This year a new tourist cave was opened near Weilburg in Germany. The cave was first discovered by miners in the 1880's, but in spite of their enthusiastic accounts about the natural beauty, the cave was never opened to the public. In 1974 the Kubacher Caving Club rediscovered the cave after opening some old mine-shafts.

After many years work by the members of the Caving club, the cave was officially opened in march this year. The cave 200 meters long and 30 meters high, is one of the highest show-caves in Germany. Unique in this cave are the walls, which are covered with white calcite crystals.

Unfortunately the town of Weilburg didn't use a special post-mark for the opening of the cave, but the local stamp collectors group issued a post-card with "hohlenpost" (cave-post).

A new post-mark will be issued in December by our friends from the German Geology Motif Group at the mineral-and fossil bourse in Giessen (not far from crystal cave).