He is the Co-Patron Saint of the town. Three days of festive and religious events are held, during which the images of San Marcos and Nuestra Señora de los Dolores are carried in procession through the town. The image of San Marcos is carried on the 25th, and that of the Virgin on the 26th.

A secular festival that had died out and was revived a few years ago, when the saint was carried in procession and, improvised, mounted on a tractor, accompanied by the townspeople to a nearby pond, where a Mass was held in his honour. On the way back to the church, some townspeople brought food and drink, others brought tables and music, and this is how, year after year, the pilgrimage of San Isidro in Larva has become established.

On San Blas's day, it is customary to light bonfires the night before, although the tradition of “playing the flag” in front of the saint as he is carried in procession has been lost. Whoever performed these distinctive flag-juggling moves aimed, after precise and eye-catching movements, to end with the flag fully wound around the pole, finishing with cheers for San Blas, echoed by everyone present.

On this day, the saint's traditional rosquillas are handed out, believed by popular tradition to protect anyone who eats them from throat ailments for the following year. A rather curious feature is the long-standing rivalry between La Puerta and Beas over possession of the image of San Blas. Tradition holds that it was found on 10 February 1565 by farmhands Juan José Sánchez, from Beas, and Antonio Ramírez, from La Puerta. The former claimed it for his town, having touched it first, while the latter maintained it belonged to his, since it had been found within his town's boundaries.

This gave rise to numerous rituals and disputes; one rather peculiar custom, once the image was settled in La Puerta, was the obligation of the so-called festival commissioners from both towns to provide the stewards organising the festival each year with a supply of wine, bread and meat for charitable distribution, two “celemines” of flour to make buñuelos, and a further three of toasted chickpeas to be handed out among all those attending.

Over time, other festive elements have been added to the ritual of San Blas, closely linked to the feast of the Purification of Mary — 2 February — which precedes it, such as the large amount of gunpowder used to make the celebration a truly thunderous affair.

Another custom, now vanished, was to bless the “caridad”, or bread to be given to the poor, on the eve of San Antón, and to light bonfires in the saint's honour.

On that day, children would go from house to house around the town asking for the “sanantón” — a kind of final Christmas gift — making themselves heard by ringing cowbells or banging frying pans and other kitchen utensils that could make noise. The saint was accompanied in procession to his hermitage amid the din of this monumental “cencerrada”.

La Puerta de Segura holds a livestock fair from 20 to 23 September in honour of San Mateo, once considered one of the most important in the province, and even in the whole of Andalusia — so much so that locals used to consider it more important than the fair in Madrid. Today it has become a festive, distinctive fair for this part of the mountain region.

The traditional rosquillas are handed out, and a charity raffle is held using items donated by local residents. A few days before the festival, the image is brought from its hermitage in Nubla. During the procession, the Saint receives many offerings in thanks for favours received.

Held in the hamlets of Arroyo Frío and El Palmar. 

 A wide variety of activities are held: fireworks, bartering competitions, bolos serranos, dominoes tournaments, a competition for garden produce and local gastronomy, children's theatre, street parades, recitals and open-air dances. The Virgin is brought from her hermitage in La Heredad to the parish church, where she remains until autumn, when she returns once again. 

A festival that combines concerts with an International Flamenco Camp for Young People, aimed at promoting and spreading flamenco art among young audiences.

This popular local dish becomes the focus of an event packed with fun activities. Dozens of people take part in this competition, which decides which is the best gachamiga recipe entered. The various entries are displayed on tables decorated with other local products and utensils, alongside folk performances and outdoor activities.

Marked by one of the oldest traditions: the Canto de la Aurora, or simply La Aurora. This involves a group of people, the “auroros”, setting out at dawn accompanied by musical instruments to walk the streets of La Guardia singing, calling the brotherhood's members to prayer.