But the most famous festivity takes place on 29th of June, and it is declared of interest to tourists, during this activity, which is located at Bilibios mounts, where it is celebrated the "Battle of Wine", which was already mentioned by the Hergueta book which was edited in 1906, nowadays this festivity is maintained as it was at the beginning of the century. The origin of this tradition seems to be a dispute over the ownership of these mountains with the neighbouring village of Miranda de Ebro.

Batalla del Vino

The Regidor Sindico by horse opens the procession till arrive at the chapel which was dwelled in V century, and, after he puts the standard on the top of the rocks, the mass starts, and after this, the battle of wine starts. It is a pacific battle, where both of the sides, if during the fight they manage to know which side they belong, throw wine each other without rest.

All the weapons are welcome for this non-bloody battle, from small wineskins to sulphate machine are used to throw thousands of litres of wine that turn mountains in an amazing spectacle. After the battle, when the midday approaches, people come back to the city to go around Paz Square. After this, they run in front of the heifers till the bullring.