The longest religious procession in Italy (in terms of distance covered), it travels some 65 km over four days, from the 1^st to the 4^th of May, joining the town of Pula to the city of Cagliari. This celebration has been held continuously since 1652, following a vow made to the saint by the Sardinian people praying to be saved from a devastating plague epidemic. The centrepiece of this festival is the small Romanesque church of Sant'Efis in Nora, which was built on the site where his martyrdom took place in 303 AC under the Diocletian Empire.

The procession still takes place according to ancient traditions, with the statue carried inside a sumptuous Baroque-style coach, on a cart drawn by beautiful oxen bred only for this purpose. The traditional carts, called 'traccas' in the Sardinian language, travel from villages near and far, showcasing the skills and produce of their communities with decorations, flowers and multi-coloured fabrics. The faithful in tow are dressed in the traditional dress of their village: a dazzling display of brocades, embroideries and jewellery.

The entire route is accompanied by the melodies of the launeddas, an ancient musical instrument made from three reeds. The streets where the statue is to pass are previously covered with 's'arramadura', a floral carpet of rose petals, myrtle, mastic, lavender, laurel, sage, cistus, helichrysum, juniper, broom, thyme, and wild olive. A feast of colours and scents for the procession and the watching public.