Santa Ageda Bezpera Saint Agatha's Eve is a traditional event taking place at the beginning of February or end of January in many places around the Basque Country, and is part of the run-up to the city's carnival. Groups dressed up in Basque traditional farmer costumes march across the neighbourhood singing and wielding a characteristic stick beaten on the ground to the rhythm of the traditional tune of Saint Agatha. The singers ask for a small donation, which can be money, a drink or something to eat. Caldereros This is a local festival held on the first Saturday of February linked to the upcoming Carnival, where different groups of people dressed in Romani (Gypsy) tinkers attire take to the streets banging rhythmically a hammer or spoon against a pot or pan, and usually bar-hop while they sing the traditional songs for the occasion. They were just male voices some time ago, but women participate and sing currently too, and the main event is at the City Hall, where the city band plays marches while the crowds bang the pots and pans. The festival began in 1884. Santo Tomas The Santo Tomas festival takes place on Thomas the Apostle's day, 21 December. From the early morning, stalls are erected around the city centre, and visitors from across Gipuzkoa come to the centre and the Old Part, many dressed in traditional Basque "farmer" outfits. Traditional and typical produce is sold from the stalls; the main drink is cider and the most popular snacks are txistorra, a thin, uncured chorizo wrapped in talo flatbread. A large pig is displayed in Plaza Constitucion, which is raffled off during the festival. Olentzero As in other Basque cities, towns and villages, on Christmas Eve the Olentzero and the accompanying carol singers usually dressed in Basque farmer costume take over the streets, especially in the city centre, asking for small donations in bars, shops and banks after singing their repertoire. Sometimes Olentzero choirs roam around the streets in later dates, on the 31st for example, and are often related to cultural, social or political associations and demands. Economy The main economic activities are commerce and tourism. San Sebastián is one of the best-known tourist destinations in Spain. The international technology organisation Ikusi is based in San Sebastián. Transport The city is served by Euskotren Trena, Euskotren's railway network. Euskotren runs trains to Bilbao and other destinations, as