Hellenic Speleological Society - Caves database, show cave links and information on its publications, history, seminars, activities and contacts. [Greek and English] - http://www.speleologicalsociety.gr/
SPELEO - Hellenic Speleological and Exploration Club located in Athens. Devoted to exploring, mapping, studying, photographing and protecting caves. Includes meeting information, expeditions, seminars, photos and contacts. - http://www.speleo.gr/en/prologos_en.html