The festival, with centuries of tradition, is always celebrated on the same date because, as they say, it is the day when the devil is on the loose. Thus, the pilgrims begin by heading to the Chapel of São Bartolomeu where, accompanied by children, they go around the temple three times with the “pitos” (black hens or roosters) on their laps. Later, the youngest children (under seven years old) are taken to the beach and submerged three times in the sea water for the so-called “Holy Bath”. A centuries-old tradition that, they say, “drives away evil” and cures illnesses related to “demonic possession”, such as stuttering, gout or epilepsy.