On 20 January each year, the streets of San Sebastián are filled with figures dressed in uniforms from the Napoleonic era, water sellers and sappers. Armed with drums, the participants walk the streets to the sound of the “zortziko” march (typical rhythm of the traditional Basque-Navarrese popular dance) by maestro Santesteban. A unique moment that lasts 24 hours and that turns the city into one of the most fun places in the whole country.