spelunking

Etymology
. . Attested since 1946.

Noun

 * 1) The practice or hobby of exploring underground caverns.

Translations

 * Dutch:
 * Finnish: luolatutkimus,
 * French:
 * German: Höhlenwandern
 * Irish: uaimheadóireacht
 * Korean: 케이빙
 * Romanian:
 * Russian:
 * Slovene: jamarstvo
 * Spanish:
 * Vietnamese: sự thích khảo sát hang động
 * Welsh: ogofa