The present operation consists of the execution of works of protection and coastal stabilisation of the cliffs of the Fenais and Ventosa, Graciosa, operationalised through various interventions, in particular:. Execution of concrete wall C30/37 for landfill containment, including opening of foundations until you find the rocky massif and formwork �. Protection of the slope and its wall in concrete with tidying of 1 to 2 tonnes according to the