The Aguillóns Curiosity · Cariño, Ortegal, A Coruña The three sharp stacks that rise below the lighthouse were called Trileucum by Ptolemy, probably for their whiteness; until the 1970s they held a large guillemot colony, now gone from this stretch of coast. Photo: Marina Quak (CC BY 3.0) What to see and do in Cariño