Ojo Guareña

The geology here of a limestone slab being deposited over impervious rock has created the condition for a river to form underground and carve out a huge gallery over millions of years....over 110 km of tunnels, one end of which is accessible from an opening in the cliff. Man has used the caves since the time of the Neanderthals. So all the history here is incredibly muddled.....prehistoric cave paintings now mostly hopelessly lost and defaced by Bronze age, Roman and Middle ages graffiti. The chamber closest to the cliff opening has become a sanctuary covered in 18th century paintings of martyrs.Read more