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Kalabera is best known for a large cave, that is a common tourist stop. The entry room stands close to 60 feet high, and drops off to a seemingly bottomless series of tributaries. Kalabera is associated with many colonial stories, including being used as a prison for Chamorros during Spain's colonial period and a reputed officers "recreation club" during the Japanese military occupation.[non-primary source needed]
- Kalabera Cave at showcaves.com
- Harmon, etc all.; Russell S. Harmon; Carol M. Wicks; Derek C. Ford; William Blaine White (2006). Perspectives on Karst geomorphology, hydrology, and geochemistry: a tribute volume to Derek C. Ford and William B. White. Geological Society of America. p. 137. ISBN 0-8137-2404-X.
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