Cabrales Cheese Competition Activity · Cabrales, Oriente, Asturias It has been held in Arenas de Cabrales on the last Sunday in August since 1968: a jury chooses the best cheese of the denomination of origin and it is then auctioned, with figures that have earned it the Guinness record for the most expensive cheese sold at auction. Photo: NACLE (CC0) What to see and do in Cabrales