spelunker

Etymology
From then-obsolete. Coined by New England cave explorer Roger Charles Johnson in the 1930s.

Noun

 * 1)  One who explores caves; one who spelunks.
 * 2)  An amateur or inadequately prepared caver.
 * 1)  An amateur or inadequately prepared caver.
 * 1)  An amateur or inadequately prepared caver.

Translations

 * Bulgarian: пещерняк
 * French:
 * German: ,
 * Greek:
 * Hungarian:
 * Icelandic: hellakönnuður
 * Polish: ,
 * Russian:
 * Slovene: jamar, jamarka
 * Tagalog: mangyuyungib