Tiefe Hardthöhle
Wuppertal
EspeleoWorld
Tiefe Hardthöhle
Wuppertal
Updated record
https://espeleoworld.com/en/c/tiefe-hardthoehle-wuppertal
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
Cave in Wuppertal (Nordrhein-Westfalen).
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Source: Wikidata – cave items (Germany) (www.wikidata.org), modified. CC0 1.0, https://creativecommons.org/publicdomain/zero/1.0/ Wikidata (CC0 1.0) · data as of 2026
