The sandwich picnics at the holy springs of Zas Food and drink · Zas, Terra de Soneira, A Coruña In Santa Margarida, San Roque do Monte and San Pedro do Allo the country picnics beside springs considered miraculous are kept up, a custom that in some cases goes back more than four hundred years. Photo: Tamorlan (CC BY 3.0) What to see and do in Zas