From Longman Dictionary of Contemporary Englishcavingcav‧ing /ˈkeɪvɪŋ/ noun [uncountable] British English DSOthe sport of going into caves deep under the ground SYN spelunking American English
Examples from the Corpus
caving• Try adventure caving if you're really energetic!• Made from lightweight plastic it's ideal for camping or fishing but not really sturdy enough for caving. 