Festivities of Aras de los Olmos Activity · Aras de los Olmos, Los Serranos, Valencia Aras de los Olmos celebrates San Marcos, patron saint of the village, on the 25th of April with gachas (a traditional porridge) and a procession, and its patron saint Santa Catalina on the 25th of November, a feast that is also moved to the main festivities in late August. Photo: Wikimedia Commons (CC BY-SA 3.0) What to see and do in Aras de los Olmos