Korallenhöhlen
Two open caves in the reef limestone northwest of Boinghausen: the Korallenhöhle with a total length of 151 m and a height difference of 7.5 m, and the Untere Korallenhöhle with a total length of only 7 m and a height difference of only 2 m.
EspeleoWorld
Korallenhöhlen
Two open caves in the reef limestone northwest of Boinghausen: the Korallenhöhle with a total length of 151 m and a height difference of 7.5 m, and the Untere Korallenhöhle with a total length of only 7 m and a height difference of only 2 m.
Marienheide
Updated record
https://espeleoworld.com/en/c/korallenhoehlen-marienheide
Information can change. Always verify coordinates, access, weather, and cave conditions before setting out.
Two open caves in the reef limestone northwest of Boinghausen: the Korallenhöhle with a total length of 151 m and a height difference of 7.5 m, and the Untere Korallenhöhle with a total length of only 7 m and a height difference of only 2 m.
Description
Morphology
One is the Korallenhöhle with a total length of 151 m and a height difference of 7.5 m, and the other is the Untere Korallenhöhle with a total length of only 7 m and a height difference of only 2 m.
Other details
Both caves are open and are looked after by the Arbeitskreis Kluterthöhle (AKKH).
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Source: Geotopkataster Nordrhein-Westfalen (Geologischer Dienst NRW) (ogc-api.nrw.de), modified. Data licence Germany – attribution – version 2.0 (dl-de/by-2-0), https://www.govdata.de/dl-de/by-2-0 Geowissenschaftliche Daten: INSP-GeotopeinNRW @ Geologischer Dienst NRW · data as of 2026