the caves of borgio verezzi with its stalactites and stalagmites and its millenary history

borgio cave cavern caves caving cavity colored column dark depth exploration figurine geology grotto heart history interior italy its lake landscape light liguria limestone millenary mineral mountain nativity nature panorama path pattern phenomena province reflection room savona scene sea shape speleology stair stalactite stalactites stalagmite stalagmites stone subterranean tourism town trail travel underground verezzi view village water western