petralona cave, creece- may 25, 2007: ancient karst cave with stalactites and stalagmites,

cave formation caving geology stalagmite tree trunk ice painting stalactite rock branch quail wood tunnel terrain art carving petralona creece- may 2007: ancient karst stalactites stalagmites ancient karst cave stalactites stalagmites greece cenote ceiling limestone decoration carstic hand tree nature rock climbing outdoors person finger people water love foot arm stone texture rocks wall stalactite geology underground stalagmite travel landscape