Free dictionary online: translation in English, Spanish, French, Italian, Chinese, Russian, definitions, synonyms...
Results found in several dictionaries: Collins, Collaborative Dictionary
espeleología   sf potholing, spelunking  (esp EEUU) , speleology frm 

Collaborative Dictionary     Spanish-English
'espeleología' found in translations in English-Spanish dictionary
caving n. la espeleología Reverso General Dictionary 

"Collins Spanish Dictionary 8th edition published in 2005 © William Collins Sons & Co Ltd 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005"