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distinguished from show caves ). in contrast, speleology is the scientific study of caves and the cave environment. [ ] the challenges involved in caving vary according to the cave being visited; in addition to the total absence of light beyond the entrance, negotiating pitches , squeezes, [ ] and water
(or figure-of-nine -) loop, bowline , alpine butterfly , and italian hitch . ropes are usually rigged using bolts , slings , and carabiners . in some cases cavers may choose to bring and use a flexible metal ladder . in addition to the equipment already described, cavers frequently carry packs containing...
https://en.wikipedia.org/wiki/Caving